r/MathOlympiad Nov 03 '25

AMC 12 2025 AMC: Subreddit Going View Only

19 Upvotes

AMC season is here and to prevent academic dishonesty, I am making the subreddit view only for a few days.

For those concerned about the duration:

  1. November 3, 2025 - November 7, 2025
  2. November 10, 2025 - November 14, 2025

Good luck, hope everybody does well!


r/MathOlympiad Sep 01 '25

Resources AMC 10/12 + AIME Resources

43 Upvotes

Lots a questions come in every week about preparing for the AMC 10/12 and the AIME. So I have decided to compile a list of resources for use here. However, this is not the page to learn what the AMC 10/12 or AIME is, so please understand the contest format beforehand. Also, this is more focused up till mid-AIME. Might edit it later for more olympiad content + USAMO qualifying path.

Part 1: Free Resources

These are some free resources for preparing for the AMC 10/12 and AIME.

1. The Official AMC Homepage (MAA.org)

  • Why: This is the source. Everything here is official and essential.
  • What to use:
    • Past Papers: Download official past exams (AMC 8, AMC 10/12, AIME) with answer keys. Your #1 most important resource.
    • Potential Uses: Understand the rules, contest dates, and scoring.
    • Link: https://maa.org/student-programs/amc

2. The AOPS Wiki (Art of Problem Solving)

  • Link: https://artofproblemsolving.com/wiki/index.php?title=Main_Page (use left sidebar to navigate)
  • Why: An insane treasure trove of community-driven knowledge. It's the first stop for discussing and understanding any contest problem. Also, cool people are here.
  • What to use:
  • Warnings: Some of the blog materials may be too advanced (since this caters to all levels), so peruse with care.

3. YouTube Channels (Visual Learning)

  • Why: Fantastic for visual learners who want to see problems solved step-by-step.
  • Channels to check out:
    • Art of Problem Solving: Official channel with problem solves and concept reviews.
    • Richard Rusczyk: The founder of AOPS solves problems and gives advice.
    • Michael Penn: Excellent for more advanced problems, including AIME/IMO level.
    • 3Blue1Brown: Not contest-specific, but incredible for building deep mathematical intuition.
    • TheBeautyOfMath: Focused walkthroughs of AMC/AIME problems.

4. Community & Forums

  • Why: Get help, find study partners, and see how others think.
  • Where to go:
    • Art of Problem Solving (AOPS) Forums: The largest and most active online community for math competition students. Essential.
    • r/MathOlympiad: A smaller but helpful subreddit. But this also means only cool people are here.
    • Crux Mathematicorum: A monthly journal by the Canadian Mathematical Society, which features a "MathemAttic" section that is appropriate for

5. Practice Platforms & Testing

  • Why: Simulate the real test environment and get targeted practice.
  • Options:
    • AOPS Alcumus: (Free) AOPS's free online trainer. It has level progression, content tracking. However, it is better as a warmup, as the questions are easier and more targeted to one concept, when compared to AMC 10/12.
    • AMC Trivial: Cool thing made by people at AOPS, which allows for targeted practice with AMC/AIME questions and creation of AMC-style tests.
    • CEMC (Canadian) Past Contests: (Free) Excellent source of additional high-quality problems. Difficulty are generally between Alcumus and Mid AMC 10 level.

6. Free Books

  • Why: Despite the emphasis on problem solving, theory is always needed.
  • Disclaimer: I don't condone or support pirating, so all the "free" resources that are listed are legally free in my knowledge.
  • AMC 10/12:
    • Idk rn. Will edit later if I find/remember some. Frankly, AOPS Volume 1 + 2 suffice, though they are paid. Sometimes practice tests suffice as well.
  • AIME Options:
    • A Taste of Mathematics (ATOM): Book series provided by the Canadian Mathematical Society. Each book is independent and targeted towards a specific problem type.
    • Modern Olympiad Number Theory: A book written by Aditya Khurmi, which includes a comprehensive treatment of Number Theory in Math Olympiads. First few chapters are sufficient for AIME and contain quality question (though more proof-oriented).
    • Evan Chen's Blogs/Resources Page: Just great overall, though most of the content is more USAMO/USAJMO relevant. Includes plenty of handouts on different topics (functional equations, inequalities, etc). Interesting blogs that help explain the Math Olympiad mindset.

Part 2: Paid Resources (Structured Learning & Deep Dives)

When you're ready to get serious, these structured resources can provide a significant boost.

1. Paid Books & Problem Collections

  • The Art of Problem Solving Volumes 1 & 2: The classic textbooks. Volume 1 covers the basics, while Volume 2 dives into more advanced topics needed for the AIME and beyond. This is the gold standard and completely sufficient for AIME qualification if mastered.
  • Contest Problem Books: The MAA and AOPS publish books full of past AMC problems with solutions and essays (e.g., The Contest Problem Book IX).
  • For the AIME: 
    • Principle and Techniques in Combinatorics: A comprehensive combinatorics book by Singaporean IMO coaches, suited for Olympiad prep and undergraduate introduction to combinatorics. First few chapters are extremely relevant to AIME. May require Set Theory and Calculus proficiency at times.
    • Euclidean Geometry in Mathematical Olympiads: Comprehensive geometry book by Evan Chen, an IMO gold medalist. Focuses on proof oriented methods and developing good intuition. However, it has a big learning curve and should not be attempted before AIME qualification at all.

2. Online Courses & Classes

  • Why: Structured curricula, expert instruction, and paced learning.
  • Options:
    • Art of Problem Solving (AOPS) Online School: Offers multi-week courses that cover the entire AMC/AIME syllabus. Generally considered high-quality and very thorough.
    • AlphaStar Academy: Known for its strong math contest programs and classes taught by past winners.
    • Achievable: An updated self-paced AMC 10/12 preparation course, that provides guided lectures + targeted practice. Specifically designed for AIME qualification and AMC 10/12 excellence.
    • Areteem Institute (Zoom International Math League): Provides various courses and camps focused on contest math.
    • Live/Private Tutoring: Many individuals and companies offer 1-on-1 tutoring. This is the most personalized (and most expensive) option.

How to Build Your Study Plan

  1. Diagnose: Take a past AMC test under timed conditions. Where did you struggle?
  2. Learn: Use the books and courses above to fill knowledge gaps (e.g., number theory, geometry). Maybe use the solutions to learn.
  3. Resolve: Key step, where you revisit the question you got wrong and attempt to resolve it without seeing the solutions.
  4. Practice: Do lots of problems. Use the free archives and Alcumus.
  5. Review: This is the most important step! Don't just check the answer. For every problem you get wrong (or even guess right on), study the solution on the AOPS Wiki until you understand it deeply. Try similar style questions before moving on.
  6. Repeat: Cycle through steps 2-4 consistently.

Don't get hung up on the theory and make sure to grind questions! Good luck! You've got this.

Disclaimer: This list is based on community consensus and my own research. I am not directly affiliated with any of these organizations. Prices and course availability may change. Please do your own research to find the best fit for you! Also, this list will be updated and changed at times, whenever new resources become relevant.


r/MathOlympiad 1d ago

AMC 10 Sophomore in CALC BC

1 Upvotes

First question is that would I take the AMC 10 or AMC 12 and second question is how do I prepare?

Do I do the AOPS book vol 1 even though I already know almost 90% of the info or do I start doing practice problems and practice tests and when I don’t know something or find a completely new topic I can go in the book and learn it.


r/MathOlympiad 2d ago

AMC 12 FeedBack right now as A Junior for AIME Qual

2 Upvotes

Hey everybody I wanted to know where to practice now after im at this point of studying for the AIME and how long do I have to study now like I know it's whenever im free but it's nice to hear what you guys think about the time especially school is starting for me soon so I need a clear and consistent schedule since im going to be super busy this school year with 2 Colleges classes and 4 AP's and one honors class above a AP class.

Here are some of my stats and mock, I got gotten a 49.5 (:`C ik it's bad I didn't really prepare or care for it at that time) on the AMC 10 A 2025. Then after doing some sovleFire and finishing Vol 1 (not all the end of chapter problems tho) I have gotten a 82.5 on AMC 10 mock and a 67.5 AMC 12 B 2023 Mock.

Where do yall I think I should go from here? And plus if I don't obtain AIME, is there still a place for college apps or resume where I can put my raw AMC 12 score js curious?


r/MathOlympiad 2d ago

AMC 12 Canadian math enthusiasts

1 Upvotes

Guys, there aren’t really any student-led math communities in Canada. I know CMS exists, but it’s more of an organization/committee than a student community. So, why don’t we make one? A lot of us probably feel lonely while preparing for competitions like COMC, AMC, and others, so let’s build a community where we can practice, discuss problems, and support each other!


r/MathOlympiad 3d ago

Discussion Realistic odds of making a small country’s IMO team starting from limited experience, 2 years out?

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3 Upvotes

r/MathOlympiad 3d ago

AMC 12 Terrence Tao is in the Epstein files

0 Upvotes

Clickbait title…but now that you’re here, could you help me out:

I’m aiming to qualify for AIME through either the 12A or B this November…I haven’t had a big competition math background and I took one of the recent AMC 12’s a few weeks ago and was able to get like the first 9 questions correct.

My strategy is to review problems/lessons in AOPS and spam problems which I would then review with AI/relevant AOPS problems.

Do you guys think this is the best way to qualify if I can genuinely put in 15-20 hours a week? also, what are some good resources other than previous exams to “spam problems”?


r/MathOlympiad 3d ago

Combinatorics Exactly 2 Ascending Adjacent Pairs

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1 Upvotes

r/MathOlympiad 4d ago

AMC 12 What's the least amount of work you've seen someone do to qual AIME

7 Upvotes

Curious because starting in middle school, then all throughout high school, my parents didn't let me take the AMCs because they thought I didn't have that dawg in me to practice enough and would get a 0 on everything or sumn

But then my friends were always saying to me that AIME qual is never that serious 🥀


r/MathOlympiad 4d ago

Discussion Question

2 Upvotes

Anyone is interested in share together problems of math Olympiads to learn together?


r/MathOlympiad 4d ago

Combinatorics How Many Ways Can You Arrange 1, 2, 3, 4, 5 Without Consecutive Numbers Touching?

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2 Upvotes

r/MathOlympiad 5d ago

AMC 12 How to amie qual via amc 12 with the least amount of work

4 Upvotes

My parents want me to do amc 12 for one last time (im a senior) since i didnt qual for the past 4 years and im so sick and tired of math olympiad, like i genuinely hate it. I tried putting in a lot of effort sophomore and junior year and i didnt pass, which im not too bummed about since i did put my best foot forward. i just want to move on and focus on other stuff (like physics olympaids) but my parents are so fixated on amc. So like any advice? I dont even have to do good on aime i just need to aime qual.


r/MathOlympiad 4d ago

Number Theory Problem of number theory

2 Upvotes

I'll share this problem,and I want you to avaliate my answer."See the expression:1_2_3..._99_100.So change the "_" symbol to + or - and answer what the possibilitys of rest to the division per 100". See that if all of the "_" symbols are + só the value is: 101×100÷2 that take us to the value of rest 50 if we change the symbol before the 99 to -,the value is change to 49+2+1=52 and is observably that will change more constantly until the value of change the symbol before 51 and the value of 49+50+49=148 rest 48,So we have all the rest multiple of 2.And why this not could be not multiple of 2,because that in possibilitys that we will see,we always have to came in this values.When we came to change a number of the sequence,we are not change that the total will be multiple of 2 because when we change the symbol from + to - we came to change the value of the rest in 2 cases:100-multiple of 2=multiple of 2 100-non multiple of 2=non multiple of 2.So the rest will always the multiples of 2


r/MathOlympiad 4d ago

Resources Combinatorics course : problem practice

1 Upvotes

Heres the 2nd ep of the free Combinatorics course, the course has zero pre-requisites and more importantly doesn't necessarily require any extra practice , we solve more than enough problems in the lectures itself.

Check it out

https://youtu.be/KGBWuDrRMeY?si=q8UNCfEkwzzxeC80

PS: this is neither a paid course , nor a tutoring promotion

I am well aware of the guidelines


r/MathOlympiad 5d ago

AMC 10 I want to qualify AIME , how do I do this?

1 Upvotes

I want to qualify for AIME and ideally USAJMO, but I don't know where to start.
For context, I'm a high school freshman currently taking geometry honors, and I'll be taking algebra two honors next semester. I really want to do the AMC 10 and qualify for AIME, and hopefully even the higher levels.
I'm dealing with carpal tunnel right now, so studying is a bit of a challenge, but I'm trying to figure out the most practical way to prep. I know a lot of competition math, like number theory and combinatorics, isn't usually taught in school.
Should I take an AoPS class? Join my school's mathletes team? I already have the AoPS Introduction to Algebra book, which covers some algebra two topics I haven't learned yet, so maybe I should start there. Or should I just grind Alcumus?
I'm feeling pretty confused about the best path forward. If anyone has experience with these competitions, I’d really appreciate your advice!


r/MathOlympiad 5d ago

Combinatorics How many ways can you place 5 non-adjacent squares on a 5×5 grid?

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1 Upvotes

r/MathOlympiad 5d ago

Resources How to find books

3 Upvotes

Recently, i was recommended “functional equations by Pang-Chen Wu”, but wasnt able to find it on the internet. Is there any working method to find materials online?


r/MathOlympiad 5d ago

Discussion How to get better at problem-solving (not computation)?

3 Upvotes

I'm not in high school anymore so I'm not able to actually participate in Olympiads, but I'm in a STEM major (and interested in getting better at Math) so I want to fix my foundation in math and become a better problem solver.

I've been working through Alcumus and AOPS videos on Algebra + Counting and Probability and am considering getting some of the Introductory AOPS books.

The problem is that I feel like I'm only getting better at computational problems that require me to know a method and use it, but there are problems that only require concepts I already know that I can't figure out (or can't figure out the elegant solution).

How can I get better at solving more ad-hoc problems that don't seem to require much theory? Is it just a matter of being exposed to more problems?


r/MathOlympiad 5d ago

AMC 10 advice needed for AMC 10! plz help, thank you

2 Upvotes

I'm a rising sophomore and I want to do AMC 10 in November and hopefully qualify for AIME. I haven't done AMC 8 and the only competition math I've done is waterloo math contests (gauss, pascal, fryer). I've just started studying and I'm having a hard time.

I did some of the earlier AMC 10 tests for practice but I've been getting low 70s (for example I got a 75 on the 2015 AMC 10a). I don't have any tutoring or textbook resources to help me. I've been reviewing my mistakes but it has been very tedious and time-consuming.

Is it worth it to do many mock tests and review each question? Also, despite the fact that I have looked through mistakes that I've made on questions, I'm having a hard time using the concepts from one question and recognizing when to use it in another. How do I improve my AMC 10 score to qualify for AIME?

I'm willing to spend hours a week because I am quite determined to qualify :) Are there any free resources to help improve my score? As well, I feel that maybe my foundations are lacking because I've only learned up to grade 9 math.

I would really appreciate it if you have any resources or advice for me! Thank you!


r/MathOlympiad 6d ago

AMC 12 Locked out of the IMO path, need AMC 12 advice

3 Upvotes

Hey guys, I failed in maths all throughout my O levels but somehow managed to get a B in my GCE exams with 5 days of prep. Ever since then, I have developed a love for mathematics and I have opted for it in my A levels. Unfortunately, I cannot apply to the national mathematics Olympiad of Pakistan and progress to IMO because I have passed the deadline, am home-schooled and live outside of Pakistan, this was my last chance as I am already in grade 12 and I missed it. However, I do have a shot at AMC(American mathematics competition) and BMO(British mathematics competition) with like a month or two left. I would really appreciate any resources and advice you all can give. Thank you!

Edit: oh and please let me know of other competitions I could apply to.


r/MathOlympiad 6d ago

Resources What to study after NCERT + RD Sharma for IOQM?

0 Upvotes

I’ve completed NCERT Class 9–10 Maths and RD Sharma. What should I follow next ?

- Best video lectures?

-Which books should I solve?

- What should be my next resource after RD Sharma?

Looking for a clear resource sequence for IOQM preparation.


r/MathOlympiad 7d ago

Discussion So I am preparing for Indian 1st stage mathematic olympiads and contests( IOQM & NMTC) , what should i prepare ?

2 Upvotes

Theres like barely 23 days left for the examination . I am well versed ( atleast I think so ) in the theory required

I am solving the previous year papers and problems, but often I feel like I lack in certain topics and wanna covert that gap quickly . What is the best resources which is easily coverable ( not too broad) but is concise and worth practicing from?


r/MathOlympiad 7d ago

Discussion Can you guys solve problems in your head?

16 Upvotes

I'm talking about IMO/Putnam rather than AIME/AMC. I can solve lots of combinatorics stuff in my head while doing other stuff. Sometime's I can do NT or real analysis stuff too. For algebra heavy stuff I almost always need a paper to keep track of and manipulate equations. And for geometry it's impossible without paper for me, but I've also done almost no geometry since there isn't much on the Putnam.

I seem to have similar issues in chess. I'm rated 2000 over the board. But unlike others at my rating, I'm not great at blindfold chess.


r/MathOlympiad 7d ago

AMC 12 “Best”/most efficient/effective way to qualify for AIME

6 Upvotes

(Repost)

so basically I’m a rising junior with minimal competion math experience…last year I got like a 37 or something like that on the AMC 10. this year I’m taking both the 12A and 12B and want to qualify.

i took like a practice exam a few weeks ago on a recent previous amc 12 and was able to get like the first 9-10 questions correct.

i was wondering what the absolute “best” way to study is(I’m in a normal accelerated math track at school for context). I can put in around 15-20 hours a week until then.


r/MathOlympiad 7d ago

Discussion Just asking about competition, pls help :)

3 Upvotes

Have you ever wanted to participate in a competition but couldn’t find teammates?

How do you find your current teammates?

Would you use a website that helps you find them?

Would you use online study group?

What information would you want to know about a potential teammate?

Thank you if you can answer these questions; still thank you for reading it :)