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Subtraction: 3-Digit Numbers

This page has printables for teaching three-digit subtraction. There are lots of traditional worksheets, as well as card games and math riddle puzzles.

3-Digit Subtraction Worksheets

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Graph Paper Math

Math games and task cards, addition and subtraction mixed, mental subtraction (subtraction patterns), subtraction worksheet generator.

Make custom worksheets with your own 2, 3, 4, or 5-digit subtraction problems. Choose vertical or horizontal problems. You can even write your own title and choose a custom header.

This page has a large selection of 4-digit subtraction worksheets, task cards, and games.

Printable subtraction worksheets with single and multi-digit problems. This index page will direct you to 2-digit problems, subtraction without borrowing, or even decimal subtraction.

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3 Digit Subtraction Worksheets

Welcome to our 3-Digit Subtraction Worksheets page for 2nd Grade.

Here you will find a wide range of free printable subtraction worksheets, as well as clearly explained steps to help your child learn to subtract 3-digit numbers.

There is also a video and several worked examples to help you understand how the standard subtraction method works.

The worksheets are graded so that the easier ones are at the top.

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Parts of a column subtraction, how to do 3 digit subtraction, 3 digit subtraction worked examples.

• 3 Digit Subtraction Worksheets no Regrouping
• 3 Digit Subtraction Worksheets with Regrouping
• 3 Digit Subtraction Missing Number Worksheets
• Easier/Harder Worksheets
• More related resources

3-Digit Subtraction Worksheets

This page contains a range of resources to help you learn and practice your 3-digit subtraction skills.

We have several worked examples so you can see how to work out different subtractions step-by-step.

We also have a range of worksheets suitable for different levels of ability.

The worksheets have been divided into three sections, with the easiest section first:

• The first section contains worksheets with no regrouping needed;
• The second section contains subtraction worksheets with regrouping;
• The third section contains more challenging subtraction worksheets.

Using these sheets will help your child to:

• subtract 3 digit numbers with and without regrouping
• set out a 3-digit subtraction problem correctly
• solve more complex 3 digit subtraction problems.

Here are some of the parts of a column subtraction that we refer to in our examples:

• The minuend is the number that you are subtracting from. It is on top.
• The subtrahend is the number that you are subtracting. It is underneath.
• The difference is the number (answer) that you are trying to find.

How to do 3-Digit Subtraction

Step 1) Subtract the Ones digit of the subtrahend from the Ones digit of the minuend.

• Write the number of Ones below the line in the Ones place.
• If the Ones digit underneath is greater than the Ones digit above then take a ten from the minuend and convert it into 10 ones.
• If the Ones digit underneath is greater and there are no Tens in the minuend, then take one Hundred from the minuend and convert it into 10 Tens. Then take one of the tens and convert it into 10 Ones.

We exchange one Ten into 10 Ones. There is now 1 Ten and 13 Ones. Now we can subtract the Ones: 13 - 6 = 7

Step 2) Subtract the Tens digit of the subtrahend from the Tens digit of the minuend.

• Write the number of Tens below the line in the Tens place.
• If the tens digit underneath is greater than the ones digit above then take a ten from the minuend and convert it into 10 tens.

We exchange one Hundred into 10 Tens. There are now 7 Hundreds and 11 Tens. Now we can subtract the Tens: 11 - 9 = 2

Step 3) Subtract the Hundreds digit of the subtrahend from the Hundreds digit of the minuend.

• Write the number of Hundreds below the line in the Hundreds place.

Subtracting the Hundreds gives us: 7 - 4 = 3

This gives us a final answer of 823 - 496 = 327

Example 1) Work out 456 - 214.

This example does not need any regrouping.

Subtracting the Ones gives us: 6 - 4 = 2.

Subtracting the Tens gives us: 5 - 1 = 4.

Subtracting the Hundreds gives us: 4 - 2 = 2.

This gives us a final answer of 456 - 214 = 242

Example 2) Work out 327 - 154.

Subtracting the Ones gives us: 7 - 4 = 3

• If the tens digit underneath is greater than the ones digit above then take a ten from the minuend and regroup it into 10 tens.

We need to take 1 Hundred and regroup it into 10 Tens. We now have 2 Hundreds and 12 Tens.

Now we can subtract the Tens: 12 - 5 = 7

Subtracting the Hundreds gives us: 2 - 1 = 1.

This gives us a final answer of 327 - 154 = 173

Example 3) Work out 861 - 639.

• If the Ones digit underneath is greater than the Ones digit above then take a ten from the minuend and regroup it into 10 ones.

We need to take 1 Ten and regroup it into 10 Ones. We now have 5 Tens and 11 Ones.

Now we can subtract the Ones: 11 - 9 = 2

Subtracting the Tens gives us: 5 - 3 = 2

Subtracting the Hundreds gives us: 8 - 6 = 2.

This gives us a final answer of 861 - 639 = 222

Example 4) Work out 602 - 375.

• If the Ones digit underneath is greater and there are no Tens in the minuend, then take one Hundred from the minuend and regroup it into 10 Tens. Then take one of the tens and regroup it into 10 Ones.

We need to take 1 Ten and regroup it into 10 Ones. Since there are no Tens, we need to take 1 Hundred and regroup it into 10 Tens.

We now have 5 Hundreds and 10 Tens.

We can now take 1 Ten and regroup it into 10 Ones. We now have 5 Hundred, 9 Tens and 12 Ones.

We can now subtract the Ones: 12 - 5 = 7

Subtracting the Tens gives us: 9 - 7 = 2

Subtracting the Hundreds gives us: 5 - 3 = 2.

This gives us a final answer of 602 - 375 = 227

3 Digit Subtraction with No Regrouping

The first three sheets here involve subtracting 3 digit numbers, where no regrouping is needed.

They are all at the same level of difficulty.

The last sheet involves setting out 3-digit subtraction problems with no regrouping correctly and then solving them.

• 3 Digit Subtraction no regrouping Sheet 1
• PDF version
• 3 Digit Subtraction no regrouping Sheet 2
• 3 Digit Subtraction no regrouping Sheet 3
• 3 Digit Subtraction no regrouping Sheet 4

3 Digit Subtraction with Regrouping

• Sheet 1 involves only 3-digit subtraction with regrouping from tens to ones.
• Sheet 2 involves regrouping from hundreds to tens only.
• Sheet 3 involves regrouping from hundreds to tens, or tens to ones, but not both.
• Sheets 4 to 6 involve 3-digit subtraction with regrouping and are at a similar level.
• Sheets 7 and 8 involve setting out 3-digit subtraction problems and then solving them.
• 3 Digit Subtraction Sheet 1
• 3 Digit Subtraction Sheet 2
• 3 Digit Subtraction Sheet 3
• 3 Digit Subtraction Sheet 4
• 3 Digit Subtraction Sheet 5
• 3 Digit Subtraction Sheet 6
• 3 Digit Subtraction Sheet 7
• 3 Digit Subtraction Sheet 8

3 Digit Subtraction Missing Number Challenges

The following sheets are for kids who are confident with 3-digit subtraction and want something a bit more challenging!

To solve the problems, you have to fill in the missing digits by working backwards and thinking carefully!

• 3 Digit Subtraction Challenges 1
• 3 Digit Subtraction Challenges 2

Looking for some easier Subtraction Worksheets

• Two Digit Subtraction Worksheets Without Regrouping
• 2 Digit Subtraction Worksheets With Regrouping

Looking for some harder Subtraction worksheets

• 4 Digit Subtraction Worksheets

These sheets involve solving 3-digit and 4-digit subtraction problems.

• Subtraction Word Problems 3rd Grade

More Recommended Math Worksheets

Take a look at some more of our worksheets similar to these.

3 Digit Addition (& Subtraction) Worksheets

• 3-Digit Column Addition Worksheets
• 3 Digit Addition and Subtraction Worksheets

Addition & Subtraction With Regrouping Worksheet Generators

Take a look at our Subtraction With Regrouping Worksheet Generator.

You can create your own subtraction worksheets with your own range of numbers.

You can use numbers up to 7 digits, and also include decimals.

• Subtraction With Regrouping Worksheet Generator
• Addition With Regrouping Worksheet Generator

More Subtraction Worksheets

Here you will some of our other Second Grade Subtraction Worksheets.

The following worksheets involve using the Second Grade Math skills of subtracting numbers, and solving subtraction problems.

• know their subtraction facts to 20;
• know how addition and subtraction are related to each other;
• solving subtraction word problems up to 100.
• Subtraction Facts to 20 Worksheets
• Subtraction Word Problems 2nd grade
• 2nd Grade Addition and Subtraction Word Problems (up to 100)

More Subtraction with Regrouping Worksheets

We also have some more grade subtraction worksheets at easier and harder levels than those on this page.

Take a look at our 2-digit or 4-digit subtraction worksheets, or try some decimal subtraction!

• 5 Digit Subtraction Worksheets
• Money Subtraction Worksheets ($)

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Subtracting 3-digit numbers in columns

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3-Digit Subtraction Educational Resources for Kids

Teach your child all about 3-digit subtraction with amazing educational resources for children. These online 3-digit subtraction learning resources break down the topic into smaller parts for better conceptual understanding and grasp. Get started now to make 3-digit subtraction practice a smooth, easy and fun process for your child!

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3-Digit Subtraction Without Regrouping

Subtracting Multiples of 100 Game

Add more arrows to your child’s math quiver by subtracting multiples of 100.

Solve by Subtracting Multiples of 100 Game

Add more arrows to your child’s math quiver by solving by subtracting multiples of 100.

Finding Difference Using Place Value Chart Worksheet

Solidify your math skills by finding the difference using a place value chart.

Use Place Value Chart to Subtract Worksheet

Reinforce math concepts by practicing to use a place value chart to subtract.

3-Digit Subtraction With Regrouping

Use place Value to Subtract by Breaking Tens Game

Sharpen your subtraction skills by using place values to subtract by breaking tens.

Subtract by Breaking Up Tens Game

Enjoy the marvel of mathematics by exploring how to subtract by breaking up tens.

Add and Subtract 3-Digit and 2-Digit Numbers with Regrouping: Horizontal Addition and Subtraction Worksheet

Kids must add and subtract 3-digit and 2-digit numbers with regrouping to enhance their math skills.

Add and Subtract 3-Digit and 2-Digit Numbers with Regrouping: Vertical Addition and Subtraction Worksheet

Solidify your math skills by adding and subtracting 3-digit and 2-digit numbers with regrouping.

All 3-Digit Subtraction Resources

Find 100 Less than a 3-Digit Number Game

Use your subtraction skills to find 100 less than a 3-digit number.

Break the Tens to Subtract Game

Unearth the wisdom of mathematics by learning how to break tens to subtract.

Subtraction Using Place Value Chart Worksheet

Combine math learning with adventure by solving subtraction problems using a place value chart.

Add and Subtract Two 3-Digit Numbers with Regrouping: Horizontal Addition and Subtraction Worksheet

Solidify your math skills by practicing to add and subtract two 3-digit numbers with regrouping.

Subtract 100 from a 3-Digit Number Game

Shine bright in the math world by learning how to subtract 100 from a 3-digit number.

Use place Value to Subtract by Breaking Hundreds Game

Unearth the wisdom of mathematics by learning to use place values to subtract by breaking hundreds.

Find the Difference Using Place Value Chart Worksheet

Be on your way to become a mathematician by finding the difference using place value chart.

Add and Subtract Two 3-Digit Numbers with Regrouping: Vertical Addition and Subtraction Worksheet

Use this printable worksheet to add and subtract two 3-digit numbers with regrouping.

Subtracting 100 from 3-Digit Numbers Game

Learn to solve real world problems by subtracting 100 from 3-digit numbers.

Subtract by Breaking Up Hundreds Game

Enjoy the marvel of math-multiverse by exploring how to subtract by breaking up hundreds.

Add and Subtract 3-Digit and 2-Digit Numbers without Regrouping: Horizontal Addition and Subtraction Worksheet

Print this worksheet to add and subtract 3-digit and 2-digit numbers without regrouping.

Subtract 1-Digit Numbers from 3-Digit Numbers with Regrouping: Horizontal Subtraction Worksheet

Put your skills to the test by subtracting 1-digit numbers from 3-digit numbers with regrouping.

Subtract 10 and 100 from 3-Digit Numbers Game

Unearth the wisdom of mathematics by learning how to subtract 10 and 100 from 3-digit numbers.

Break the Hundreds to Subtract Game

Ask your little one to break the hundreds to subtract to play this game.

Add and Subtract 3-Digit and 2-Digit Numbers without Regrouping: Vertical Addition and Subtraction Worksheet

Download this worksheet to add and subtract 3-digit and 2-digit numbers without regrouping.

Subtract 2-Digit Numbers from 3-Digit Numbers with Regrouping: Horizontal Subtraction Worksheet

Boost your ability to subtract 2-digit numbers from 3-digit numbers with regrouping.

Find 10 Less than a 3-Digit Number Game

Shine bright in the math world by learning how to find 10 less than a 3-digit number.

Subtract by Breaking Tens and Hundreds Game

Use your math skills to subtract by breaking tens and hundreds.

Add and Subtract Two 3-Digit Numbers without Regrouping: Horizontal Addition and Subtraction Worksheet

This downloadable worksheet will help you add and subtract two 3-digit numbers without regrouping.

Subtract 1-Digit Numbers from 3-Digit Numbers with Regrouping: Vertical Subtraction Worksheet

Make math practice a joyride by subtracting 1-digit numbers from 3-digit numbers with regrouping.

Subtract 10 from a 3-Digit Number Game

Practice the superpower of subtraction by learning how to subtract 10 from a 3-digit number.

Subtract by Breaking into Tens and Ones Game

Kids must subtract by breaking into tens and ones to practice subtraction.

Add and Subtract Two 3-Digit Numbers without Regrouping: Vertical Addition and Subtraction Worksheet

Download this worksheet to add and subtract two 3-digit numbers without regrouping.

Subtract 2-Digit Numbers from 3-Digit Numbers with Regrouping: Vertical Subtraction Worksheet

In this worksheet, learners will subtract 2-digit numbers from 3-digit numbers with regrouping.

Subtracting 10 from 3-Digit Numbers Game

Enjoy the marvel of mathematics by exploring how to subtract 10 from 3-digit numbers.

Break into Tens and Ones to Subtract Game

Have your own math-themed party by learning how to break a number into tens and ones to subtract.

Subtract 1-Digit Numbers from 3-Digit Numbers without Regrouping: Horizontal Subtraction Worksheet

Make math practice fun by subtracting 1-digit numbers from 3-digit numbers without regrouping.

Subtract Two 3-Digit Numbers with Regrouping: Horizontal Subtraction Worksheet

In this worksheet, learners subtract two 3-digit numbers with regrouping to practice subtraction.

Use Model to Subtract 1-Digit Number Game

Take the first step towards building your math castle by using models to subtract 1-digit numbers.

Regroup Once to Subtract Game

Take the first step towards building your math castle by practicing how to regroup once to subtract.

Subtract 2-Digit Numbers from 3-Digit Numbers without Regrouping: Horizontal Subtraction Worksheet

Learners must subtract 2-digit numbers from 3-digit numbers without regrouping to practice math.

Subtract Numbers within 1000 with Regrouping: Horizontal Subtraction Worksheet

Reinforce math concepts by subtracting numbers within 1000 with regrouping.

Use Place Value Chart to Subtract 1-Digit Number Game

Apply your math skills to use place value charts to subtract 1-digit numbers.

Regroup Twice to Subtract Game

Take the first step towards building your math castle by practicing to regroup twice to subtract.

Subtract 1-Digit Numbers from 3-Digit Numbers without Regrouping: Vertical Subtraction Worksheet

Solidify your math skills by subtracting 1-digit numbers from 3-digit numbers without regrouping.

Subtract Two 3-Digit Numbers with Regrouping: Vertical Subtraction Worksheet

This downloadable worksheet is designed to subtract two 3-digit numbers with regrouping.

Subtract 1-Digit Number from 3-Digit Number Game

Take a deep dive into the world of math by subtracting 1-digit numbers from 3-digit numbers.

Regroup and Subtract 1-Digit From 3-Digit Numbers Game

Help your child take flight by learning how to regroup and subtract 1-digit from 3-digit numbers.

Subtract 2-Digit Numbers from 3-Digit Numbers without Regrouping: Vertical Subtraction Worksheet

Enjoy the magic of math by subtracting 2-digit numbers from 3-digit numbers without regrouping.

Subtract Numbers within 1000 with Regrouping: Vertical Subtraction Worksheet

Help your child subtract numbers within 1000 with regrouping.

Your one stop solution for all grade learning needs.

Subtraction Strategies For 3 Digit Numbers: How 2nd Grade Students Best Understand Them

by | | 2nd Grade Math , Uncategorized

A big standard for 2nd grade students is learning different subtraction strategies for 3-digit numbers. My first year teaching 2nd grade, these lessons intimidated me.

“We made it through some hard lessons…” That’s what I heard years ago at lunch from the 2nd grade teachers when I was doing my student teaching. (I student taught in a first grade classroom.) Little did I know that I would be hired as a 2nd grade teacher the next year in that district, and I would be teaching those hard lessons.

Can you guess what lessons they were talking about?

It was 3-digit subtraction strategies.

And my first year teaching, they were hard lessons. For me and the students! I had no clue how to teach them and I felt like the curriculum didn’t give students enough practice with them for them to be successful.

And the practice they did offer, didn’t match the format they had used in the lesson. This drove me crazy because students would be extra confused when doing the practice pages! And it was not helpful for anyone…

So I started making supplemental resources to give my students quality extra practice.

When students got this practice in, things started clicking for them. They were able to choose different strategies to use and actually be accurate with the answers.

Over the years of teaching subtraction strategies, I’ve discovered what students need in order to be successful with these 3-digit subtraction strategies.

Before students are ready for these subtraction strategies for 3 digit numbers, they need a good foundation with math facts and place value concepts. I’ve learned that students do so much better with these strategies for subtraction when you review the place value concepts involved in the strategy and when you help students discover patterns that are needed to do the strategies.

So today, I’m sharing the 4 different 3-digit subtraction strategies I teach in my 2nd grade classroom including the place value concepts that directly correlate with these strategies and the patterns students need to notice for each of these strategies.

But before we get started, it’s important to know that students do much better with 3-digit subtraction strategies when they are fluent with their basic addition and subtraction math facts. I have a free workbook to help you get your students to math fact fluency: The 7 Steps to Ensure Math Fact Fluency. Download your free copy here.

Subtraction Strategies For 3-Digit Numbers

The 3-digit subtraction strategies I teach my students are the open number line strategy counting back, open number line add up to subtract, mental math or the break apart strategy, and regrouping or the standard algorithm.

I like to teach my 2nd grade students all of the subtraction strategies for 3-digit numbers. That way they can choose a strategy they like to solve 3-digit subtraction equations. This 3-digit subtraction strategies anchor chart helps them do that.

Open Number Line Strategy – Counting Back

With this subtraction strategy, students make jumps back of hundreds, tens, and ones on an open number line to subtract the two 3-digit numbers. For students to do this they need to know the patterns involved when subtracting 100 and 10 from a 3-digit number.

To help students learn these patterns I like to write up a bunch of equations with 3-digit numbers subtracting 100 and 10 on the board. We solve them as a class and soon students know that when we subtract a 100 from a number, the hundreds number decreases by 1. They also see when we subtract 10, the tens number decreases by 1. They also discover what I call “our special zero pattern.” This is where the 3-digit number you are subtracting from as a zero in the tens place and you are subtracting 10 from it. After solving a few of these, students discover that the hundreds number decreases by 1, the tens number changes to a 9, and the ones number stays the same. Find practice activities to help students learn these patterns here.

Once students learn these, they are ready to solve 3-digit numbers on an open number line.

Let’s look at an example with the equation 835 – 122. For students to solve this equation, they would start by making a little “tick” on the right side of the open number line and label it 835 underneath.

Once students can use mental math to subtract 100, 10, and 1 from a 3-digit number, it makes teaching subtraction strategies so much easier.

Then they look at how many hundreds are in the number they are subtracting. In this case, students make 1 one hundred jump back. They label this jump with “-100” up above the jump. Down below they are going to subtract 100 from their starting number. So they would write “735” underneath.

Then they look at how many tens are in the number they are subtracting and make that many jumps. For this example, they make 2 ten jumps and label them “-10” up above. Then they need to write the numbers underneath where they subtract 10, so they write “725” and “715.”

And finally, they look at how many ones are in the number they are subtracting. There are 2 ones in 122 so students then make two jumps and label them “-1” up above. Down below they write the numbers “714” and 713.” The last number they write underneath is their answer.

Now let’s talk about the place value concepts students need to know before you teach this strategy. Students need to know what the hundreds place is, the tens place is, and the ones place. They need to know that the 1 in 122 doesn’t just mean 1, it means 100. And so on with the tens number and the ones number. I have a blog post where I share exactly how to teach this concept to your students. Read it here: Place Value Standards: How to Best Teach Them to 2nd Grade Students

Find all of my resources to teach the open number line strategy in my money-saving bundle here.

O pen Number Line – Add Up to Subtract

Subtraction fascinates me because we can add up to subtract. I teach my students this at the beginning of the school year with basic math facts. If we have an equation like 7-5, we can think how many more is 7 than 5. It’s 2. We can also think of it like 5 plus something equals 7. I like to remind students this before this lesson by using fact families. Learn more about fact families in this blog post here.

We can “think addition to subtract” with larger equations as well. Let me show you with this example: 735 – 524 = 

On an open number line, you put the greater number in the equation on the right side and the lesser number on the left side. Then you have students make jumps up hundreds, tens, and ones until they reach the bigger number. To get your answer, you add up the jumps.

When you add up the jumps from 524 to 735 you get 211. So 735-524=211.

When students struggle with strategies for subtraction, that is when I like to teach them that they can think addition to subtract.

As you can see, students need to know important place-value concepts for this strategy. But luckily they are similar to the ones for the counting back strategy. They need to know what the hundred number means, what the tens number means, and what the ones number means. Read more about teaching place value standards here. 

Find all the resources you need to teach with subtraction strategy to your students here in this money-saving bundle: 3-Digit Subtraction Strategies Bundle

Mental Math 3-Digit Subtraction Strategy

For this 3-digit subtraction strategy, subtract the hundreds, the tens, and then the ones. But when there are not enough tens or ones to subtract from, students break apart the numbers to make easier numbers to subtract from.

This is one of most important subtraction strategies for 3-digit numbers because it allows students to solve 3-digit subtraction equations at any time.

Let me give you an example with this equation: 485 – 246 =

Start with the hundreds, 4-2=2. Then go to the tens, 8-4=4. After that, go to the ones. But if you have 5 ones, you can’t take away 6. So we break the 6 apart into 5 and 1. Then this gets you the equation 5-5=0. You can put the hundreds, tens, and ones together to get 240. But you still need to subtract one more because you broke the 6 apart into 5 and 1. So your answer is 239.

You can do the same thing when there are not enough tens to subtract. You break apart the tens number to make an easier equation. Just remember that when you are breaking apart the number in the tens place, you are working with tens. So when you go to subtract the extra number, put a zero behind it.

Let me give you an example with this equation: 653 – 262 =

You subtract the hundreds 6-2=4. Then you go to the tens but there are not enough tens, so you break 6 into 5 and 1. So 5-5=0. After that, you subtract the ones, 3-2=1. Then you put your hundreds, tens, and ones together to get 401. But you still need to subtract another 10, so the answer is 391.

For this strategy, students need to know the patterns when subtracting multiple ones from a 3-digit number and multiple tens from a 3-digit number.

They also need to know place value patterns to help understand this. Read more about teaching place value patterns in this blog post here.

Regrouping 3-Digit Subtraction Strategy

For regrouping, I eventually get students while they line up the numbers and start with the ones to subtract. If there are not enough ones, they regroup a ten into 10 ones. Then they move over to subtract the tens. If there are not enough tens, they regroup a hundred into 10 tens. Finally, they subtract the hundreds to get to the answer.

But it takes some time to teach this subtraction strategy so that students build understanding on what it means to regroup instead of just following rote rules. To do this, I first have students solve these equations by drawing base ten blocks. I have them do this in a hundreds, tens, and ones chart. Then circle a ten they are regrouping, draw an arrow to the ones, and then draw in 10 ones. They do a similar thing when they need to regroup into the tens. They circle a hundred, draw over an arrow to the tens, and then draw in 10 tens. This helps students see why regrouping works.

Then the next day we do a lesson where I still have students draw models to solve, but they also line up the numbers to show what they are doing with the pictures.

Subtraction strategies for 3-digit numbers are so important that it is okay to take a few days to teach each one.

After that, I have a lesson where I help students see patterns that they can apply with just lining up the numbers to solve.

These patterns include that when students regroup, the place where they regroup from has one less. And the place where they need more has 10 more.

When you teach regrouping lessons in this way, things fall into place for students. They don’t struggle with the steps because they have seen the mechanics of it all. They really do master regrouping for subtraction!

Find all of the resources I use to teach the regrouping method in this money-saving bundle here.

I have a full blog post going into more detail about how to teach 3-digit subtraction with regrouping. Read it here: How to 3-Digit Subtraction With Regrouping: Expert Strategies for Building Understanding

3 Number Subtraction Worksheets

As I am teaching each of these 3-digit subtraction strategies, I like to provide support along the way. I make sure to teach place value lessons before teaching subtraction strategies. Learn about these lessons in this blog post here. I review the place value concept that directly correlates with the subtraction strategy right before I introduce the new strategy. Find the resources I use to do this here.

The worksheets I use to teach these strategies have different features that help guide students. After that, I give students 3 number subtraction worksheets that slowly take away those features so that students can do these different 3-digit subtraction strategies with a little less guidance. With this scaffolding, soon students are successful with the subtraction strategies!

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Mr. Math Blog

Break Apart Ones to Add - Lesson 4.1

Group Tens as Hundreds - Lesson 2.1

Explore 3 Digit Numbers - Lesson 2.2

Model 3 Digit Numbers - Lesson 2.3

Hundreds, Tens, and Hundreds - Lesson 2.4

​Place Value to 1,000 - Lesson 2.5

​ Number Names - Lesson 2.6

Different Forms of Numbers - Lesson 2.7

Algebra - Different Ways to Show Numbers - 2.8

Count On and Count Back by 10 and 100 - 2.9

Algebra - Number Patterns - Lesson 2.10

​Problem Solving - Compare Numbers - Lesson 2.11

Algebra - Compare Numbers - Lesson 2.12

​Chapter 2 Review for Test - Numbers to 1,000

Draw to Represent 3-Digit Addition - Lesson 6.1

Break Apart 3-Digit Addends - Lesson 6.2

3-Digit Addition - Regrouping Ones - Lesson 6.3

3-Digit Addition - Regrouping Tens - Lesson 6.4

​3-Digit Addition - Regroup Ones and Tens - L. 6.5

Problem Solving: 3-Digit Subtraction - Lesson 6.6

3-Digit Subtraction: Regroup Tens - Lesson 6.7

3-Digit Subtraction: Regroup Hundreds - Lesson 6.8

Subtraction: Regroup Ones and Tens - Lesson 6.9

Use Double Facts - Lesson 3.1 ​

Practice Addition Facts - Lesson 3.2

Algebra - Make a Ten to Add - Lesson 3.3

Algebra - Add 3 Addends - Lesson 3.4

Algebra - Relate Addition and Subtraction - Lesson 3.5

Practice Subtraction Facts - Lesson 3.6

Use Ten to Subtract - Lesson 3.7

Algebra - Use Drawings to Represent Problems - L. 3.8

Algebra - Use Equations to Represent Problems - L. 3.9

Problem Solving - Equal Groups - Lesson 3.10

Second Grade

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Dimes, Nickels, and Pennies - Lesson 7.1

Quarters - Lesson 7.2

Count Collections - Lesson 7.3

​ Show Amounts in Two Ways - Lesson 7.4

One Dollar - Lesson 7.5

Amounts Greater than $1 - Lesson 7.6

​ Problem Solving With Money - Lesson 7.7

Lesson 1.1 - Even and Odd Numbers

Lesson 1.2 - Representing Even Numbers

​Lesson 1.3 - Understanding Place Value

Lesson 1.4 - Expanded Form

Lesson 1.5 - Different Ways to Write Numbers

Lesson 1.6 - Different Names for Numbers

Lesson 1.7 - Problem Solving - Tens and Ones

Lesson 1.8 - Counting Patterns Within 100

Lesson 1.9 - Counting Patterns Within 1000

Review For Test - Chapter 1

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Subtraction Lesson

• Demonstrate an understanding of place value
• Learn how to subtract multi-digit whole numbers
• Learn how to subtract multi-digit whole numbers with regrouping (borrowing)

How to Subtract Multi-Digit Whole Numbers

Vertical subtraction - multi-digit subtraction without regrouping (borrowing).

• Arrange the numbers vertically and by place value, the minuend will be on top and the subtrahend will be on the bottom. Remember, subtraction is not commutative, so the order does matter here.
• Draw a horizontal line underneath the bottom number and place a "-" to the left of the bottom number
• Subtract the digits in the rightmost column, this will contain the ones' place digit for each number. We subtract the bottom number away from the top number.
• Place the result directly below the horizontal line
• Repeat the subtraction process in each column moving left until there are no more columns to subtract

Vertical Subtraction - Multi-Digit Subtraction with Regrouping (Borrowing)

• In this case, the subtraction in the ones' column provides an issue. We can't subtract 1 - 5 since 1 is not large enough to take 5 away. When this occurs, we can borrow from the next digit left. 71 = 7 tens + 1 ones. If we borrow 1 ten or 10 ones from the 7, we could rewrite the number 71 as: 6 tens + 11 ones. This would allow us to subtract in the ones' column since 11 is larger than 5.
• Now we can subtract 11 - 5

Skills Check:

Find each difference.

Please choose the best answer.

5,616 - 2,796

Congrats, Your Score is 100 %

Better Luck Next Time, Your Score is %

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Go Math Grade 2 Chapter 6 Answer Key Pdf 3-Digit Addition and Subtraction

Go Math Grade 2 Chapter 6 Answer Key Pdf : Become master in the concepts of 3-Digit Addition and Subtraction by availing the Go Math Grade 2 Chapter 6 Answer Key available. Practice using the Elementary School 2nd Grade Go Math Chapter 6 Solutions via quick links available. Look no further and ace up your preparation using the Go Math Grade 2 Answer Key Ch 6 to score higher grades in exams. Make the most out of these resources and attempt the final exam with confidence and clear the exam with flying colors.

3-Digit Addition and Subtraction Go Math Grade 2 Chapter 6 Answer Key Pdf

HMH Go Math Grade 2 Chapter 6 Answers 3-Digit Addition and Subtraction include different questions covering the Problems from Lessons, Review/Test, Homework & Practice, Assessment Tests, etc. Second Grade Go Math Ch 6 3-Digit Addition and Subtraction Answer Key is sequenced as per the Go Math Textbooks. Download the Topicwise Go Math Grade 2 Ch 6 3-Digit Addition and Subtraction Concepts in PDF Format for free of cost from here and prepare the respective topic accordingly.

• 3-Digit Addition and Subtraction Show What You Know – Page 388
• 3-Digit Addition and Subtraction Vocabulary Builder – Page 389
• 3-Digit Addition and Subtraction Game 2-Digit Shuffle – Page 390
• 3-Digit Addition and Subtraction Vocabulary Game – Page(390A-390B)
• Lesson 6.1 Draw to Represent 3-Digit Addition – Page(391-396)
• Draw to Represent 3-Digit Addition Homework & Practice 6.1 – Page(395-396)
• Lesson 6.2 Break Apart 3-Digit Addends – Page(397-402)
• Break Apart 3-Digit Addends Homework & Practice 6.2 – Page(401-402)
• Lesson 6.3 3-Digit Addition: Regroup Ones – Page(403-408)
• 3-Digit Addition: Regroup Ones Homework & Practice 6.3 – Page(407-408)
• Lesson 6.4 3-Digit Addition: Regroup Tens – Page(409-414)
• 3-Digit Addition: Regroup Tens Homework & Practice 6.4 – Page(413-414)
• Lesson 6.5 Addition: Regroup Ones and Tens – Page(415-420)
• Addition: Regroup Ones and Tens Homework & Practice 6.5 – Page(419-420)
• 3-Digit Addition and Subtraction Mid-Chapter Checkpoint – Page 418
• Lesson 6.6 Problem Solving • 3-Digit Subtraction – Page(421-426)
• Problem Solving • 3-Digit Subtraction Homework & Practice 6.6 – Page(425-426)
• Lesson 6.7 3-Digit Subtraction: Regroup Tens – Page(427-432)
• 3-Digit Subtraction: Regroup Tens Homework & Practice 6.7 – Page(431-432)
• Lesson 6.8 3-Digit Subtraction: Regroup Hundreds – Page(433-438)
• 3-Digit Subtraction: Regroup Hundreds Homework & Practice 6.8 – Page(437-438)
• Lesson 6.9 Subtraction: Regroup Hundreds and Tens – Page(439-444)
• Subtraction: Regroup Hundreds and Tens Homework & Practice 6.9 – Page(443-444)
• Lesson 6.10 Regrouping with Zeros – Page(445-450)
• Regrouping with Zeros Homework & Practice 6.10 – Page(449-450)
• 3-Digit Addition and Subtraction Review/Test – Page(451-454)

3-Digit Addition and Subtraction Show What You Know

Explanation: There are 5 tens if we subtract 3 tens only 2 tens will remain. Therefore 50‐30 =20.

Explanation: There are 7 tens if we subtract 2 tens only 5 tens will remain. Therefore 70‐20 =50.

Explanation: In the above picture there are 7 tens and 9 ones.So, 54+25=79

Explanation: In the above picture there are 4 tens and 13 ones.13 ones is 1 tens and 3 ones.Finally there are 5 tens and 3 ones.So, 35+18=83

Explanation: In the above picture there are 14 tens and 9 ones.14 tens means 1 hundreds and 4 tens.Finally there are 1 hundreds, 4 tens and 9 ones.So, 82+67=149.

Explanation: In the above picture there are 10 tens and 10 ones.10 tens means 1 hundreds and 10 ones means 1 tens.Finally there are 1 hundreds and 1 tens. So, 29+81=110

Explanation: In the above picture there are 2 hundreds, 5 tens and 3 ones.So, the number is 253.

Explanation: In the above picture there are 3 hundreds, 5 tens and 1 ones.So, the number is 351.

3-Digit Addition and Subtraction Vocabulary Builder

Question 2. Write an addition sentence that has a sum of 20. ______ Answer: 10+10=20

Explanation: There are 10 ones and 10 ones in the above picture.10 ones means 1 tens.Finally there are 2 tens.So, 10+10=20.

Question 3. Write a subtraction sentence that has a difference of 10. ________ Answer: 20-10=10

Explanation: There are 2 tens in above picture if we subtract 1 tens from it we get 1 tens.So, 20‐10=10.

3-Digit Addition and Subtraction Game 2-Digit Shuffle

• number cards 10–50

Play with a partner.

• Shuffle the number cards. Place them face down in a pile.
• Take two cards. Say the sum of the two numbers.
• Your partner checks your sum.
• If your sum is correct, place a counter on a button. If you regrouped to solve, place a counter on another button.
• Take turns. Cover all the buttons. The player with more counters on the board wins.

-Digit Addition and Subtraction Vocabulary Game

How to Play

• Take turns to play.
• Choose a math word from the Word Box. Do not say the word.
• Set the timer for 1 minute.
• Draw pictures and numbers to give clues about the math word.
• The first player to guess the word gets 1 point. If he or she use the word in a sentence, they get 1 more point. That player gets the next turn.
• The first player to score 5 points wins.

The Write Way Reflect Choose one idea. Write about it on the lines below.

• Tell how to solve this problem. 42 – 25 = _____
• Write a paragraph that uses at least three of these words. addends digit sum hundred regroup

Lesson 6.1 Draw to Represent 3-Digit Addition

Essential Question How do you draw quick pictures to show adding 3-digit numbers?

Listen and Draw

Share and Show

Explanation: In the above picture, there are 4 hundreds, 6 tens, and 9 ones. So, the number is 469.

Explanation: In the above picture, there are 5 hundreds, 5 tens and 8 ones.So, the number is 558.

On Your Own

4 hundreds 4 tens and 9 ones is 449.

Explanation: In the above picture there are 4 hundreds, 4 tens and 9 ones.So, the number is 449.

3 hundreds 8 tens and 2 onea is 382

Explanation: In the above picture there are 3 hundreds, 8 tens and 2 ones.So, the number is 382.

Problem Solving • Applications

Explanation: Add 145 and 122. There are 2 hundreds, 6 tens and 7 ones in the above picture.So, the sum of 145 and 122 is 267. 2 hundred 6 tens 7 ones.

Draw to Represent 3-Digit Addition Homework & Practice 6.1

Explanation: Add 227 and 341. In the above picture add the hundreds, tens and ones.There are 5 hundreds,6 tens and 8 ones.So the sum of 227 and 341 is 568. 5 hundreds 6 tens 8 ones.

Explanation: Add the shells in the above picture.There are 3 rows of shells and each row has 4 shells each.So, there are 12 shells in all. 1 tens and 2 ones.

Explanation: Add the number of pens kara counts.Add the tens and ones.There are 7 tens and 18 ones.So, the number of pens kara counted is 7 tens and 18 ones ie 8 tens and 8 ones.Therefore the sum of 32,25,7 and 24 is 88. 8 tens and 8 ones.

Explanation: In the above picture 39 is removed from 46.So, the difference of 46 and 39 is 7. 7 ones.

Explanation: In the above picture 34 is removed from 55.So, the difference of 55 and 34 is 21. 2 tens 1 ones.

Lesson 6.2 Break Apart 3-Digit Addends

Essential Question How do you break apart addends to add hundreds, tens, and then ones?

Write the number. Draw a quick picture for the number. Then write the number in different ways. _______ ______ hundreds ______ tens _____ ones _____ + _____ + ______ Answer: 258 2 hundreds 5 tens 8 ones 200+50+8

_______ ______ hundreds ______ tens _____ ones _____ + _____ + ______ Answer: 325 3 hundreds 2 tens 5 ones 300+20+8

MATHEMATICAL PRACTICES Make Connections What number can be written as 400 + 20 + 9? Answer: 400+20+9 =4 hundreds 2 tens and 9 ones 400+20+9=429

Model and Draw

Explanation: Add 538 and 216.Add the hundreds, tens and ones from the above picture.There are 7 hundreds,4 tens and 14 ones.So, the sum of 538 and 216 is 754. 7 hundreds 5 tens 4 ones.

Explanation: Add 321 and 457.Add the hundreds, tens and ones from the above picture.There are 7 hundreds,7 tens and 8 ones.So, the sum of 321 and 457 is 778 7 hundreds 7 tens 8 ones.

Explanation: Add 744 and 162. Add the hundreds, tens and ones from the above picture. There are 8 hundreds,1 tens and 6 ones.So, the sum of 744 and 162 is 906. 9 hundreds 0 tens 6 ones.

Explanation: Add 254 and 536.Add the hundreds, tens and ones from the above picture.There are 7 hundreds,8 tens and 10 ones.So, the sum of 254 and 536 is 790. 7 hundreds 9 tens 0 ones.

Explanation: Add 425 and 232.Add the hundreds, tens and ones from the above picture.There are 5 hundreds,5 tens and 7 ones.So, the sum of 538 and 216 is 557. 5 hundreds 5 tens 7 ones.

Explanation: Add 849 and 123.Add the hundreds, tens and ones from the above picture.There are 9 hundreds,6 tens and 12 ones.So, the sum of 538 and 216 is 972. 9 hundreds 7 tens 2 ones.

Explanation: Add 158,100 and 231.Add the hundreds, tens and ones from the above picture.There are 4 hundreds,8 tens and 9 ones.So, the sum of 158,100 and 231 is 489. 4 hundreds 8 tens 9 ones.

Explanation: As in the above example add hundreds,tens and ones seperately and the sum of hundreds,tens and ones is 786. 7 hundreds 8 tens 6 ones

Explanation: Add 376 and 316.Add the hundreds, tens and ones from the above picture.There are 6 hundreds,8 tens and 12 ones.So, the sum of 376 and 316 is 692. 6 hundreds 9 tens 2 ones.

TAKE HOME ACTIVITY • Write 347 + 215. Have your child break apart the numbers and then find the sum.

Break Apart 3-Digit Addends Homework & Practice 6.2

Explanation: There are 126 crayons in a bucket and the teacher adds 144 more to the bucket.To find the totqal number of crayons in the bucket, Add 126 and 144.Add the hundreds, tens and ones from the above picture.There are 2 hundreds,7 tens and 0 ones.So, the sum of 126 and 144 is 270.Therefore there are total 260 crayons in the bucket. 2 hundreds 6 tens 0 ones.

Explanation: Add 324 and 231.Add the hundreds, tens and ones from the above picture.There are 5 hundreds,5 tens and 5 ones.So, the sum of 324 and 231 is 555. 5 hundreds 5 tens 5 ones.

Explanation: Add 218 and 145.Add the hundreds, tens and ones from the above picture.There are 3 hundreds,5 tens and 13 ones.So, the sum of 218 and 145 is 363. 3 hundreds 6 tens 3 ones.

Explanation: Add 664 and 223.Add the hundreds, tens and ones from the above picture.There are 8 hundreds,8 tens and 7 ones.So, the sum of 664 and 223 is 887. 8 hundreds 8 tens 7 ones.

Explanation: Ang found 19 berries and Barry found 21 berries.Add 19 and 21.There are 3 tens and 10 ones in the above picture.So, the sum of 19 and 21 is 40. 4 tens and 0 ones.

Question: Write a subtraction fact related to 9 + 6 = ______ Answer: 20-5=15

Explanation: In the above question the sum of 9 and 6 is 15.So, the subtraction fact for 15 is 20-5=15.

Explanation: There are 25 goldfish and 33 betta fish.Add 25 and 33.Add the tens and ones from the above picture.There are 5 tens and 8 ones.So the sum of

Lesson 6.3 3-Digit Addition: Regroup Ones

Essential Question When do you regroup ones in addition?

Explanation: To find the sum of 213 and 356. There are 5 hundreds,6 tens and 9 ones in the above picture. So, the sum of 213 and 356 is 569.5 hundreds 6 tens 9 ones.

Explanation: In the above picture the ones,tens and hundreds are added seperately by regrouping the ones.The sum of 328 and 134 is 462.

Explanation: In the above picture the ones,tens and hundreds are added seperately without regrouping.The sum of 445 and 23 is 468.

Explanation: In the above picture the ones,tens and hundreds are added seperately without regrouping.The sum of 526 and 103 is 629.

Explanation: In the above picture the ones,tens and hundreds are added seperately by regrouping the ones.The sum of 348 and 19 is 367.

Explanation: In the above picture the ones,tens and hundreds are added seperately by regrouping the ones.The sum of 628 and 347 is 975.

Explanation: In the above picture the ones,tens and hundreds are added seperately by regrouping the ones.The sum of 562 and 329 is 891.

Explanation: In the above picture the ones,tens and hundreds are added seperately by regrouping the ones.The sum of 147 and 125 is 272.

Explanation: In the above picture the ones,tens and hundreds are added separately without regrouping.The sum of 326 and 200 is 526.

Explanation: In the above picture the ones,tens and hundreds are added separately without regrouping.The sum of 140 and 235is 375.

Explanation: In the above picture the ones,tens and hundreds are added seperately by regrouping the ones.The sum of 249 and 318 is 567.

TAKE HOME ACTIVITY • Ask your child to explain why he or she regrouped in only some of the problems in this lesson.

3-Digit Addition: Regroup Ones Homework & Practice 6.3

Explanation: In the above picture the ones,tens and hundreds are added seperately by regrouping the ones.The sum of 148 and 234 is 382.

Explanation: In the above picture the ones,tens and hundreds are added seperately by regrouping the ones.The sum of 321 and 318 is 639.

Explanation: In the above picture the ones,tens and hundreds are added seperately by regrouping the ones.The sum of 414 and 179 is 593.

Explanation: In the above picture the ones,tens and hundreds are added seperately by regrouping the ones.The sum of 602 and 258 is 860.

Explanation: In the above picture the ones,tens and hundreds are added seperately by regrouping the ones.The sum of 258 and 135 is 393.

Explanation: In the above picture the ones,tens and hundreds are added seperately without regrouping.The sum of 136 and 212 is 348.

Explanation: In the above picture the ones,tens and hundreds are added seperately by regrouping the ones.The sum of 435 and 146 is 581.

Explanation: In the above picture the ones,tens and hundreds are added seperately by regrouping the ones.The sum of 436 and 306 is 742.

Explanation: In the above picture there are 9 ones.Subtract 4 ones from ir.There are 5 ones remained after subracting.Therefore the difference of 9 and 4 is 5.

Explanation: In the above picture the ones,tens and hundreds are added seperately by regrouping the ones.The sum of 243 and 132 is 375.

Lesson 6.4 3-Digit Addition: Regroup Tens

Essential Question When do you regroup tens in addition?

MATHEMATICAL PRACTICES Explain how your quick pictures show what happened in the problem. Answer:

Question 15. GO DEEPER Who sold more pieces of fruit? _______________ How many more? _______ more pieces of fruit Answer: Mr. Olsan sold more fruits than Mr. Lee 314 + 229 = 443 538 – 443 = 95

TAKE HOME ACTIVITY • Have your child choose a new combination of two fruits on this page and find the total number of pieces of the two types of fruit.

3-Digit Addition: Regroup Tens Homework & Practice 6.4

Problem Solving Solve. Write or draw to explain. Question 7. There are 142 blue toy cars and 293 red toy cars at the toy store. How many toy cars are there? _______ toy cars Answer: Given, There are 142 blue toy cars and 293 red toy cars at the toy store. To find the total number of toy cars we have to add blue cars and red cars. 142 + 293 = 435 Thus 435 toy cars are there.

Question 8. WRITE Find the sum of 362 + 265. Explain why you did or did not regroup. Answer: 362 + 265 = 627

Question 5. Francis had 8 toy cars, then his brother gave him 9 more. How many toy cars does Francis have now? 8 + 9 = ______ cars Answer: 17 cars

Explanation: Given, Francis had 8 toy cars, then his brother gave him 9 more. 8 + 9 = 17 Francis has 17 toy cars now.

Lesson 6.5 Addition: Regroup Ones and Tens

Essential Question How do you know when to regroup in addition?

Explanation: Add the tens digits and hundreds digits in the above sums.

Explanation: Add the tens digits and the hundreds digits in the above sums.

MATHEMATICAL PRACTICES Analyze Were some problems easier to solve than other problems? Explain. Answer:

Explanation: 4 ones+ 9 ones=13 ones 1 ten + 8 tens +2 tens=11 tens 1 hundred + 1 hundred + 3 hundreds=5 hundreds.

Explanation: 6 ones+ 8 ones=14 ones 1 ten + 4 tens +7 tens=12 tens 1 hundred + 5 hundred + 2 hundreds=8 hundreds.

Explanation: 7 ones+ 3 ones=10 ones 1 ten + 2 tens +5 tens=11 tens 3 hundreds + 3 hundreds=6 hundreds.

Explanation: 4 ones+ 2 ones=6 ones 3 tens +5 tens=8 tens 2 hundred + 1 hundreds=3 hundreds.

Explanation: 5 ones+ 2 ones=7 ones 7 tens +7 tens=14 tens 1 hundred + 3 hundreds + 2 hundreds=6 hundreds.

Explanation: 9 ones+ 3 ones=12 ones 1 ten + 8 tens +2 tens=11 tens 1 hundred + 1 hundred + 6 hundreds=8 hundreds.

Explanation: 4 ones+ 1 one=5 ones 7 tens +8 tens=15 tens 1 hundred + 5 hundreds + 2 hundreds=8 hundreds.

Explanation: 6 ones+ 3 ones=9 ones 1 ten + 8 tens =9 tens 4 hundreds + 4 hundreds=8 hundreds.

Explanation: 6 ones+ 7 ones=13 ones 1 ten + 4 tens +9 tens=14 tens 1 hundred + 3 hundreds + 5 hundreds=9 hundreds.

Explanation: 5 ones+ 3 ones=8 ones 6 tens +8 tens=14 tens 1 hundred + 3 hundreds + 2 hundreds=6 hundreds.

Explanation: 7 ones+ 9 ones=16 ones 1 ten + 4 tens +0 tens=5 tens 6 hundred + 1 hundreds=5 hundreds.

Explanation: 6 ones+ 6 ones=12 ones 1 ten + 4 tens +5 tens=10 tens 1 hundred + 5 hundreds + 3 hundreds=9 hundreds.

Explanation: 5 ones+ 9 ones=14 ones 1 ten + 5 tens +3 tens=9 tens 4 hundreds + 1 hundred=5 hundreds.

Explanation: 3 ones+ 5 ones=8 ones 6 tens +4 tens=10 tens 1 hundred + 5 hundreds + 2 hundreds=8 hundreds.

Explanation: 6 ones+ 4 ones=10 ones 1 ten + 3 tens +8 tens=12 tens 1 hundred + 2 hundreds + 4 hundreds=7 hundreds.

Addition: Regroup Ones and Tens Homework & Practice 6.5

Explanation: 7 ones+ 5 ones=12 ones 1 ten + 4 tens +3 tens=8 tens 5 hundreds + 4 hundreds=9 hundreds.

Explanation: 7 ones+ 4 ones=11 ones 1 ten + 6 tens +8 tens=15 tens 1 hundred + 3 hundreds + 2 hundreds=6 hundreds.

Explanation: 5 ones+ 6 ones=11 ones 1 ten + 8 tens +5 tens=14 tens 1 hundred + 4 hundred + 4 hundreds=5 hundreds.

Explanation: 7 ones+ 6 ones=13 ones 1 ten + 8 tens +0 tens=9 tens 1 hundred + 3 hundreds=4 hundreds.

Explanation: 7 ones+ 8 ones=15 ones 1 ten + 4 tens +2 tens=7 tens 6 hundreds + 1 hundred=7 hundreds.

Explanation: Saul and luisa has 167 points each on a computer game.Add points of both saul and luisa.There are 3 hundreds 2 tens and 14 ones.So, the sum of 167 and 167 is 3 hundred 3 tens and 4 ones. 7 ones+ 7 ones=14 ones 1 ten + 6 tens +6 tens=13 tens 1 hundred + 1 hundred + 1 hundred=3 hundreds.

Explanation: 5 ones+ 9 ones=14 ones 1 ten + 7 tens +4 tens=12 tens 1 hundred + 2 hundreds + 2 hundreds=5 hundreds.

Explanation: 8 ones+ 2 ones=10 ones 1 ten + 4 tens +7 tens=12 tens 1 hundred + 3 hundreds + 2 hundreds=6 hundreds.

Explanation: 3 ones+ 7 ones=10 ones 1 ten + 2 tens +1 tens=11 tens 1 hundred + 2 hundreds=3 hundreds.

Spiral Review Question 3. Which addition fact has the same sum as 9 + 4. 10 + _____ Answer: 9+4=13 10+3=13

Explanation: The sum of 9 and 4 is 13. So, if we add 3 to 10 we get the same sum 13. Therefore the addition fact that has the same sum as 9+4 is 10+3.

Explanation: 2 ones+ 5 ones + 6 ones=13 ones 1 ten + 3 tens +1 tens +4 tens=9 tens

Question 6. Tom had 25 pretzels. He gave away 12 pretzels. How many pretzels does Tom have left? 25 – 12 = ______ pretzels Answer:

Explanation: There are 25 blocks in the above picture.Subtract 1 tens and 2 ones from the above picture.Therefore 13 blocks are left. So, the difference of 25 and 12 is 13.

3-Digit Addition and Subtraction Mid-Chapter Checkpoint

Concepts and Skills

Explanation: Add 567 and 324. Add the hundreds, tens and ones from the above picture. There are 8 hundreds,8 tens and 11 ones. So, the sum of 567 and 324 is 363. 8 hundreds 9 tens 1 ones

write the  sum .

Explanation: 8 ones+ 6 ones=14 ones 1 ten + 4 tens +4 tens=9 tens 2 hundreds + 3 hundreds=5 hundreds.

Explanation: 0 ones+ 4 ones=4 ones 1 ten +6 tens=11 tens 6 hundreds + 2 hundreds=8 hundreds.

Explanation: 1 ones+ 7 ones=8 ones 9 tens +3 tens=12 tens 1 hundred + 3 hundreds + 5 hundreds=9 hundreds.

Explanation: 8 ones+ 9 ones=17 ones 1 ten + 4 tens +1 tens=6 tens 1 hundred + 1 hundred=2 hundreds.

Lesson 6.6 Problem Solving • 3-Digit Subtraction

Essential Question How can making a model help when solving subtraction problems?

There were 436 people at the art show. 219 people went home. How many people stayed at the art show?

Show how to solve the problem. Make a model. Then draw a quick picture of your model. ______ people

Answer: Given, There were 436 people at the art show. 219 people went home. 436 – 219 = 217

HOME CONNECTION • Your child used a model and a quick picture to represent and solve a subtraction problem.

Question 2. 245 children go to the face-painting event. 114 of the children are boys. How many of the children are girls? _______ girls Answer: Given, 245 children go to the face-painting event. 114 of the children are boys. 245 – 114 = 132 girls There are 132 girls.

MATHEMATICAL PRACTICES Explain how you solved the first problem on this page.

TAKE HOME ACTIVITY • Ask your child to choose one of the problems in this lesson and solve it in a different way.

Problem Solving • 3-Digit Subtraction Homework & Practice 6.6

Make a model to solve. Then draw a quick picture of your model. Question 1. On Saturday, 770 people went to the snack shop. On Sunday, 628 people went. How many more people went to the snack shop on Saturday than on Sunday? ______ more people Answer: Given, On Saturday, 770 people went to the snack shop. On Sunday, 628 people went. 770 -628 = 42 more people

Question 2. There were 395 lemon ice cups at the snack shop. People bought 177 lemon ice cups. How many lemon ice cups are still at the snack shop? ______ cups Answer: Given, There were 395 lemon ice cups at the snack shop. People bought 177 lemon ice cups. 395 – 177 = 218 cups

Question 3. There were 576 bottles of water at the snack shop. People bought 469 bottles of water. How many bottles of water are at the snack shop now? _______ bottles Answer: Given, There were 576 bottles of water at the snack shop. People bought 469 bottles of water. 576 – 469 = 107 bottles

Question 4. WRITE Draw quick pictures to show how to subtract 314 and 546. Answer: 546 – 314 = 232

Lesson Check Question 1. There are 278 math and science books. 128 of them are math books. How many science books are there? ______ books Answer: Given, There are 278 math and science books. 128 of them are math books. 278 – 128 = 150 books There are 150 science books.

Question 2. A book has 176 pages. Mr. Roberts has read 119 pages. How many pages does he have left to read? _____ pages Answer: Given, A book has 176 pages. Mr. Roberts has read 119 pages. 176 – 119 = 57 pages 57 pages are left to read.

Spiral Review Question 3. What is the sum? 1 + 6 + 2 = _____ Answer: add the number in ones place = 9

Question 4. What is the difference? 54 – 8 = _____ Answer: The difference of the two numbers 54 and 8 are 46

Lesson 6.7 3-Digit Subtraction: Regroup Tens

Essential Question When do you regroup tens in subtraction?

Question 7. GO DEEPER A bookstore has 148 books about people and 136 books about places. Some books were sold. Now there are 137 books left. How many books were sold? _______ books Answer: Given, A bookstore has 148 books about people and 136 books about places. 148 + 136 = 284 books Some books were sold. Now there are 137 books left. 284 – 137 = 147 books 147 books were sold.

3-Digit Subtraction: Regroup Tens Homework & Practice 6.7

Problem Solving Solve. Write or draw to explain. Question 5. There were 985 pencils. Some pencils were sold. Then there were 559 pencils left. How many pencils were sold? ______ pencils Answer: Given, There were 985 pencils. Some pencils were sold. Then there were 559 pencils left. 985 – 559 = 426 426 pencils were sold.

Question 6. WRITE Choose one exercise from above. Draw quick pictures to check your work. Answer:

Spiral Review Question 3. What is the difference? 45 – 7 = _____ Answer: 38

Question 4. Leroy has 11 cubes. Jane has 15 cubes. How many cubes do they have altogether? ______ cubes Answer: Given, Leroy has 11 cubes. Jane has 15 cubes. 11 + 15 = 26 cubes Leroy and Jane together has 26 cubes.

Question 5. Mina puts 5 flowers in each vase. How many flowers will she put in 3 vases? ______ flowers Answer: Given, Mina puts 5 flowers in each vase. 5 × 3 = 15 flowers Thus Mina put 15 flowers in 3 vases.

Go Math Grade 2 Workbook Pdf Chapter 6 Review Answers Math Question 6. Mr. Hill had 428 pencils. He gave away 150 pencils. How many pencils did he keep? ______ pencils Answer: Given, Mr. Hill had 428 pencils. He gave away 150 pencils. 428 – 150 = 278 pencils Thus he keep 278 pencils.

Lesson 6.8 3-Digit Subtraction: Regroup Hundreds

Essential Question When do you regroup hundreds in subtraction?

MATHEMATICAL PRACTICES Describe what to do when there are not enough tens to subtract from. Answer:

MATHEMATICAL PRACTICE Make Arguments Question 9. Choose one exercise above. Describe the subtraction that you did. Be sure to tell about the values of the digits in the numbers. ______________________ _______________________ Answer:

TAKE HOME ACTIVITY • Have your child explain how to find the difference for 745 − 341.

3-Digit Subtraction: Regroup Hundreds Homework & Practice 6.8

Problem Solving Solve. Write or draw to explain. Question 5. There were 537 people in the parade. 254 of these people were playing an instrument. How many people were not playing an instrument? _______ people Answer:

Question 6. WRITE Write the subtraction problem for 838 – 462 and find the difference. Then draw quick pictures to check your difference. Answer:

Spiral Review Question 3. What is the difference? 52 – 15 = ______ Answer:

Question 4. Wallace has 8 crayons and Alma has 7. How many do the have together? 8 + 7 = _____ crayons Answer:

Lesson 6.9 Subtraction: Regroup Hundreds and Tens

Essential Question How do you know when to regroup in subtraction?

Explanation: Subtract the tens amd hundreds from the above sums to find the difference.

MATHEMATICAL PRACTICES Were some problems easier to solve than other problems? Explain. Answer: Yes some problems wre easy to solve than the other problems as theur was no need of any regrouping for some problems.

Explanation: Regroup 2 tens 1 ones as 1 tens 11 ones.Subtract the ones. Regroup 4 hundreds 1 tens as 3 hundreds 11 tens.Subtract the tens Subtract the hundreds.

Explanation: Subtract the ones. Regroup 1 hundreds 7 tens as 1 hundreds 17 tens.Subtract the tens Subtract the hundreds.

Explanation: Regroup 4 tens 6 ones as 3 tens 16 ones.Subtract the ones. Regroup 5 hundreds 3 tens as 4 hundreds 13 tens.Subtract the tens Subtract the hundreds.

Explanation: Subtract the hundreds,tens and ones as there is no need of regrouping.

Explanation: Regroup 4 tens 7 ones as 3 tens 17 ones.Subtract the ones. Regroup 7 hundreds 3 tens as 6 hundreds 13 tens.Subtract the tens Subtract the hundreds.

Explanation: Subtract the ones. Regroup 9 hundreds 3 tens as 8 hundreds 13 tens.Subtract the tens Subtract the hundreds.

Explanation: Regroup 4 tens 2 ones as 3 tens 12 ones.Subtract the ones. Subtract the tens Subtract the hundreds.

Explanation: Subtract the ones. Regroup 4 hundreds 6 tens as 3 hundreds 16 tens. Subtract the tens Subtract the hundreds.

Explanation: Regroup 5 tens 5 ones as 4 tens 15 ones. Subtract the ones. Regroup 4 hundreds 1 tens as 3 hundreds 1 tens. Subtract the tens Subtract the hundreds.

Explanation: Subtract the ones. Regroup 6 hundreds 5 tens as 5 hundreds 15 tens.Subtract the tens Subtract the hundreds.

Explanation: Regroup 2 tens 1 ones as 1 tens 11 ones.Subtract the ones. Regroup 5 hundreds 1 tens as 4 hundreds 11 tens.Subtract the tens Subtract the hundreds.

Explanation: Regroup 5 tens 8 ones as 4 tens 18 ones.Subtract the ones. Subtract the tens Subtract the hundreds.

Explanation: Regroup 4 tens 2 ones as 3 tens 12 ones.Subtract the ones. Regroup 5 hundreds 3 tens as 4 hundreds 13 tens.Subtract the tens Subtract the hundreds.

Explanation: Subtract the ones. Regroup 8 hundreds 2 tens as 7 hundreds 12 tens.Subtract the tens Subtract the hundreds.

Explanation: Regroup 4 tens 7 ones as 3 tens 17 ones.Subtract the ones. Regroup 9 hundreds 3 tens as 8 hundreds 13 tens.Subtract the tens Subtract the hundreds.

Explanation: The missing numbers in the first sum are 5 and 5 because only when the numbers are 5 tens and 5 ones if we regroup them they become 4 tens and 15 ones. The missing numbers in the second sum are 8, 3 and 6 because only when the numbers are 8 hundreds and 3 tens if we regroup them they become 7 hundreds and 13 ones.And 6 ones because if we subtract only 6 ones from 7 ones we get the answer as 1 ones.

Explanation: As shown in the above picture the difference between 270 and 300 is 30, 800 and 300 is 500 and 843 and 800 is 43.So, when we add 30,500 and 43 is sum wiil be 573.Therefore the difference between 543 and 270 is 573.

Explanation: Regroup 7 tens 1 ones as 6 tens 11 ones.Subtract the ones. Subtract the tens Subtract the hundreds.

Explanation: Regroup 2 tens 7 ones as 1 tens 17 ones.Subtract the ones. Regroup 4 hundreds 1 tens as 3 hundreds 11 tens.Subtract the tens Subtract the hundreds.

Explanation: Subtract the ones. Regroup 4 hundreds 7 tens as 3 hundreds 17 tens.Subtract the tens Subtract the hundreds.

Subtraction: Regroup Hundreds and Tens Homework & Practice 6.9

Explanation: Regroup 1 tens 6 ones as 0 tens 16 ones.Subtract the ones. Regroup 8 hundreds 0 tens as 7 hundreds 10 tens.Subtract the tens Subtract the hundreds.

Explanation: Regroup 0 tens 2 ones as 9 tens 12 ones.Subtract the ones. Regroup 9 hundreds 9 tens as 8 hundreds 19 tens.Subtract the tens Subtract the hundreds.

Explanation: Regroup 9 tens 6 ones as 8 tens 16 ones.Subtract the ones. Subtract the tens Subtract the hundreds.

Explanation: Regroup 3 tens 2 ones as 2 tens 12 ones.Subtract the ones. Regroup 4 hundreds 2 tens as 3 hundreds 12 tens.Subtract the tens Subtract the hundreds.

Explanation: Regroup 3 tens 5 ones as 2 tens 15 ones.Subtract the ones. Regroup 7 hundreds 2 tens as 6 hundreds 12 tens.Subtract the tens Subtract the hundreds.

Explanation: Subtract the ones. Regroup 3 hundreds 4 tens as 2hundreds 14 tens.Subtract the tens Subtract the hundreds.

Explanation: Regroup 3 tens 6 ones as 2 tens 16 ones.Subtract the ones. Regroup 3 hundreds 2 tens as 2 hundreds 12 tens.Subtract the tens Subtract the hundreds.

Explanation: 6 ones + 3 ones=19 ones 1 tens +4 tens + 3 tens=7 tens 2 hundreds + 5 hundreds=7 hundreds. 7 hundreds 7 tens 9 ones.

Explanation: Regroup 3 tens 8 ones as 2 tens 18 ones.Subtract the ones. Subtract the tens

Question 5. What is the difference? 17 – 9 = _____ Answer: 8 by substracting 17 with 9 we get 8 hence the difference is 8

Question 6. Lisa had 15 daisies. She gave away 7 daisies. Then she found 3 more daisies. How many daisies does Lisa have now? 15 – 7 + 3 = ______ Answer: by subtracting 15 with 7 we get 8 then she found 3 more daisies so add 8 with 3 we get 11 Lisa has 11 daisies

Lesson 6.10 Regrouping with Zeros

Essential Question How do you regroup when there are zeros in the number you start with?

MATHEMATICAL PRACTICES Describe another way that you could solve the problem. Answer:

Question 14. MATHEMATICAL PRACTICE Analyze Claire has 250 pennies. Some are in a box and some are in her bank. There are more than 100 pennies in each place. How many pennies could be in each place? _____ pennies in a box _______ pennies in her bank Explain how you solved the problem. ________________ _________________ Answer: Given, Analyze Claire has 250 pennies. Some are in a box and some are in her bank. There are more than 100 pennies in each place. There could be 125 pennies in a box There could be 125 pennies in her bank

TAKE HOME ACTIVITY • Ask your child to explain how he or she solved one of the problems in this lesson.

Regrouping with Zeros Homework & Practice 6.10

Problem Solving Solve. Question 7. There are 303 students. There are 147 girls. How many boys are there? _______ boys Answer: Given There are 303 students. There are 147 girls to find boys from that 303 students by subtracting 303 with 147 girls we get 156 hence there are 156 boys

Question 8. WRITE Write the subtraction problem 604 – 357. Describe how you will subtract to find the difference. _______________ ________________ Answer: 604 –  357   247 by subtracting 604 with 357 we get 247 the difference is 247

Question 5. What is the difference? 10 – 2 = _____ Answer: 8

3-Digit Addition and Subtraction Review/Test

Question 1. Mr. Kent’s art class used 234 craft sticks. Ms. Reed’s art class used 358 craft sticks. How many craft sticks did the two classes use? ______ craft sticks Answer: Given, Mr. Kent’s art class used 234 craft sticks. Ms. Reed’s art class used 358 craft sticks. 234 + 358 = 592 craft sticks Thus the two classes used 592 craft sticks.

Question 5. Mrs. Preston had 513 leaves. She gave 274 leaves to her students. Draw to show how you found your answer. How many leaves does she still have? ______ leaves Answer: Given, Mrs. Preston had 513 leaves. She gave 274 leaves to her students. 513 – 274 = 239 leaves Mrs. Preston still has 239 leaves

Final Words:

Get the free access to Download Go Math Grade 2 Answer Key Chapter 6 3-Digit Addition and Subtraction pdf. Enhance your math skills by solving the problems given at the end of this chapter.

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Subtracting 6-Digit from 6-Digit Numbers With Some Regrouping (28 Questions) (A)

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