arithmetic problem solving brainly

Brainly: AI Homework Helper 4+

Community-driven, ai-powered, brainly sp. z o o.

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• 4.7 • 259.2K Ratings
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Improve your grades with Brainly! Use verified answers, tutor chat support, and textbook solutions to make the As start rolling in. Brainly, the AI Learning Companion. Learn with Brainly — the world’s most popular homework help app! Get quick solutions from students and Experts, while enjoying features that make studying fast, easy, and fun! In just seconds, you can find correct solutions with step-by-step explanations to help you understand concepts, boost your knowledge, and improve your grades. - Scan a pic of your math equation or word problem to get answers in seconds using Brainly’s Scan to Solve feature! - Improve your grades using 24/7 access to AI Tutor and Live Expert support. - Get Expert-Verified homework answers from Community Q&A. - Find personalized, in-depth answers powered by AI. Get ahead in school while earning points, finding study buddies, competing with other students, and climbing the leaderboards. – Do you struggle with math? Math Solver to the rescue! If you’re stuck and confused, just scan a pic of the question for a fast answer in seconds, plus a step-by-step explanation. Algebra, geometry, trigonometry, or calculus: no equation is too tough for Brainly! Solve math equations and word problems at any school level — including AP and college courses. – Why have just one study buddy when you can have millions? Never study alone again with Brainly Community Q&A, where you can ask any question for Expert-Verified answers from users around the world! Our large community of Experts is available 24/7 to help you with any question in math, science, history, English, & other subjects. Our network of reliable moderators ensures that all the answers you get are correct and easy to understand. We also allow parents and children to pair accounts as part of our commitment to safety. – Struggling with any particular subject or topic? A Live Expert* will help you get back on track! Get in-depth guidance and see all the steps to make homework easier and exams less stressful. Understand complex concepts in science & math with your own learning guide at your fingertips! And for personalized AI support, you can switch to the AI Tutor for on-demand help, available in seconds. *This feature is available if you have a Brainly Tutor Plan. – Do you spend a lot of time searching for textbook answers? Explore Brainly's library of solutions for structured, step-by-step answers written by Experts. Find explanations for practice questions in STEM textbooks and more by searching for your book's grade, title, author, or ISBN. – What if we told you that studying can be fun? Competition thrives on Brainly with learning-based leaderboards, badges, and achievements. Make tough questions a competition for others as you get rewards for answering the trickiest questions. Learning can take a lot of effort, but it doesn’t need to be all work and no play. – Get more out of Brainly with Brainly Plus & Brainly Tutor! Access to Brainly is 100% free. However, if you want to enjoy all of Brainly’s features without ads, upgrade to Brainly Plus or Brainly Tutor. *** Get fun updates from us on: Instagram @brainly Facebook @brainlygroup Tiktok @brainly For any problems, reach out to our support team: https://brainly.com/contact | [email protected] Marketing: https://brainly.com Terms of use: https://brainly.com/pages/terms_of_use Privacy policy: https://brainly.com/pages/privacy_policy

Version 4.129.0

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Ratings and Reviews

259.2K Ratings

Brainy is a lifesaver!!!!!

Brainly is a lifesaver. It is SOOOO helpful and my grades definitely wouldn’t be where they are now if it weren’t for Brainly. I struggle a bit in certain subjects and so if I need help I just go to Brainly and ask a question or search for a question others have asked and read explanations. You see, Brainly doesn’t just give you the answer, they give you a thorough step-by-step explanation that really helps you understand how to get to the correct answer. Helps me every time. I have paid $0 and I can still get so much homework assistance. I also really love Brainly AI because all you do is ask/scan the question and the AI gives you a PERFECT step-by-step explanation. I’ve tried other online [math] calculators that also give step-by-step explanations, but sometimes I don’t understand and just ask Brainly AI and I understand it much better. The best part is that you can use their AI for free :) I also really enjoy answering other people’s questions and I like how Brainly incorporates points and badges into the app because it keeps you motivated to ask questions and help other people as well. Great work! ❤️📚📎✏️

Brainily plus subscription

I have been using the tutors to help me with some challenging questions for my math homework. Many have been very helpful but you’re only able to ask 20 questions a month. I have used 12/20 mostly because the tutors take me in then say they can’t solve the question and end the session. Because of this it has been using up the questions I can ask for this month. And when you loose connection it gets rid of all the tutors work and you have to ask a new tutor. Its really upsetting when you have waited to find out how to solve the question your struggling on for 10 or minutes to see oh you lost connection go find a new tutor. It happened to me once and all the other tutors gave me the wrong answer or said they didn’t know how to do it. One tutor was convinced what they got was the right answer but my teacher gives us the correct answers so we can check our work. I would have made a comment on it but then it said I lost connection. Which is really weird because I have really good wifi and it doesn’t say or do this on other apps. If this happens I wish there was a reconnect option. Just know when you sign up for brainly plus there is a chance the tutors won’t give you the correct answer. They are real people and won’t know how to do everything and can make minor mistakes within the problems. Just make sure you go through and check everything and that it makes sense to you before you end the session.

Developer Response ,

Hello there, We are sorry to hear that the Brainly Homework App did not meet your expectations. We're always looking to improve and we would greatly appreciate it if you could share with us your feedback. Whether it's about our math calculator, or any other issue, we're happy to help you at [email protected]

Ads loading forever and not showing up at all...

The app it’s self is really good and very helpful and I appreciate it very much but, Recently for the past 3 days whenever I’ve went into the app and had to watch an ad as usual, it would load for very a long time and never show up in the end no matter how long I waited. I even tried many things to see what the problem was. My connection was fine and I’ve tried to refresh, turn off or shut off my phone, logging in out logging back in, deleting the app and re-installing, and offloading the app. But with all the efforts I put in to make it work it never did. So I decided to go on the website instead and it worked perfectly fine the ads did show up and let me play them. So the problem seemed to be the app it’s self, but the only thing that is inconvenient about going to the website instead of the app, is it only gives me a limited amount of ads I can watch to get answers in a day. I’m not sure if I’m The only one with this problem but I believe since a couple days have passed this seem to be a really worrisome for me and difficult since I really like the app in general. So therefore, I would like to see and know if there’s anything I’m doing wrong or something that I need to do to make it work. Please and thank you for your value time.

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The developer, Brainly sp. z o o , indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

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• Brainly Plus, Monthly $9.99
• Brainly Plus, Annual $39.99
• Brainly Tutor, Monthly $29.99
• Brainly Tutor, Annual $95.99
• Brainly Plus, Monthly $2.00
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Unit 1: Problem solving with arithmetic

Comparing with multiplication.

• Comparing with multiplication (Opens a modal)
• Comparing with multiplication and addition: giraffe (Opens a modal)
• Comparing with multiplication and addition: money (Opens a modal)
• Comparing with multiplication: magic (Opens a modal)
• Compare with multiplication Get 5 of 7 questions to level up!
• Compare with multiplication word problems Get 3 of 4 questions to level up!

Multiplication, division word problems

• Division word problem: field goals (Opens a modal)
• Multiplication word problem: pizza (Opens a modal)
• Multiplication and division word problems Get 5 of 7 questions to level up!

Multi-step word problems

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• 2-step estimation word problems Get 3 of 4 questions to level up!
• Represent multi-step word problems using equations Get 3 of 4 questions to level up!
• Multi-step word problems with whole numbers Get 3 of 4 questions to level up!

Math Calculator

Enter the expression you want to evaluate.

Please ensure that your password is at least 8 characters and contains each of the following:

• a special character: @$#!%*?&

Mathematicians Are Edging Close to Solving One of the World's 7 Hardest Math Problems

And there’s $1 million at stake.

• In new research, mathematicians have narrowed down one of the biggest outstanding problems in math.
• Huge breakthroughs in math and science are usually the work of many people over many years.
• Seven math problems were given a $1 million bounty each in 2000, and just one has been solved so far.

The “Millennium Problems” are seven infamously intractable math problems laid out in the year 2000 by the prestigious Clay Institute, each with $1 million attached as payment for a solution. They span all areas of math , as the Clay Institute was founded in 1998 to push the entire field forward with financial support for researchers and important breakthroughs.

But the only solved Millennium Problem so far, the Poincare conjecture, illustrates one of the funny pitfalls inherent to offering a large cash prize for math. The winner, Grigori Perelman, refused the Clay prize as well as the prestigious Fields Medal. He withdrew from mathematics and public life in 2006, and even in 2010, he still insisted his contribution was the same as the mathematician whose work laid the foundation on which he built his proof, Richard Hamilton.

Math, all sciences, and arguably all human inquiries are filled with pairs or groups that circle the same finding at the same time until one officially makes the breakthrough. Think about Sir Isaac Newton and Gottfried Leibniz, whose back-and-forth about calculus led to the combined version of the field we still study today. Rosalind Franklin is now mentioned in the same breath as her fellow discoverers of DNA, James Watson and Francis Crick. Even the Bechdel Test for women in media is sometimes called the Bechdel-Wallace Test, because humans are almost always in collaboration.

That’s what makes this new paper so important. Two mathematicians—Larry Guth of the Massachusetts Institute of Technology (MIT) and James Maynard of the University of Oxford—collaborated on the new finding about how certain polynomials are formed and how they reach out into the number line. Maynard is just 37, and won the Fields Medal himself in 2022. Guth, a decade older, has won a number of important prizes with a little less name recognition.

The Riemann hypothesis is not directly related to prime numbers , but it has implications that ripple through number theory in different ways (including with prime numbers). Basically, it deals with where and how the graph of a certain function of complex numbers crosses back and forth across axes. The points where the function crosses an axis is called a “zero,” and the frequency with which those zeroes appear is called the zero density.

In the far reaches of the number line, prime numbers become less and less predictable (in the proverbial sense). They are not, so far, predictable in the literal sense—a fact that is an underpinning of modern encryption , where data is protected by enormous strings of integers made by multiplying enormous prime numbers together. The idea of a periodic table of primes, of any kind of template that could help mathematicians better understand where and how large primes cluster together or not, is a holy grail.

In the new paper, Maynard and Guth focus on a new limitation of Dirichlet polynomials. These are special series of complex numbers that many believe are of the same type as the function involved in the Riemann hypothesis involves. In the paper, they claim they’ve proven that these polynomials have a certain number of large values, or solutions , within a tighter range than before.

In other words, if we knew there might be an estimated three Dirichlet values between 50 and 100 before, now we may know that range to be between 60 and 90 instead. The eye exam just switched a blurry plate for a slightly less blurry one, but we still haven’t found the perfect prescription. “If one knows some more structure about the set of large values of a Dirichlet polynomial, then one can hope to have improved bound,” Maynard and Guth conclude.

No, this is not a final proof of the Riemann hypothesis. But no one is suggesting it is. In advanced math, narrowing things down is also vital. Indeed, even finding out that a promising idea turns out to be wrong can have a lot of value—as it has a number of times in the related Twin Primes Conjecture that still eludes mathematicians.

In a collaboration that has lasted 160 years and counting, mathematicians continue to take each step together and then, hopefully, compare notes.

Caroline Delbert is a writer, avid reader, and contributing editor at Pop Mech. She's also an enthusiast of just about everything. Her favorite topics include nuclear energy, cosmology, math of everyday things, and the philosophy of it all. 

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Computer Science > Computation and Language

Title: dart-math: difficulty-aware rejection tuning for mathematical problem-solving.

Abstract: Solving mathematical problems requires advanced reasoning abilities and presents notable challenges for large language models. Previous works usually synthesize data from proprietary models to augment existing datasets, followed by instruction tuning to achieve top-tier results. However, our analysis of these datasets reveals severe biases towards easy queries, with frequent failures to generate any correct response for the most challenging queries. Hypothesizing that difficult queries are crucial to learn complex reasoning, we propose Difficulty-Aware Rejection Tuning (DART), a method that allocates difficult queries more trials during the synthesis phase, enabling more extensive training on difficult samples. Utilizing DART, we have created new datasets for mathematical problem-solving that focus more on difficult queries and are substantially smaller than previous ones. Remarkably, our synthesis process solely relies on a 7B-sized open-weight model, without reliance on the commonly used proprietary GPT-4. We fine-tune various base models on our datasets ranging from 7B to 70B in size, resulting in a series of strong models called DART-MATH. In comprehensive in-domain and out-of-domain evaluation on 6 mathematical benchmarks, DART-MATH outperforms vanilla rejection tuning significantly, being superior or comparable to previous arts, despite using much smaller datasets and no proprietary models. Furthermore, our results position our synthetic datasets as the most effective and cost-efficient publicly available resources for advancing mathematical problem-solving.

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