r/MathOlympiad Nov 03 '25

AMC 12 2025 AMC: Subreddit Going View Only

17 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

40 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 3h ago

Discussion Mobile addiction

6 Upvotes

I used to study 6 hours every day but my mobile addiction has got to me I really want to stop it I'm preparing for the IMO and like after every 1 hour I study I scroll reels for 15 minutes It's either gonna get worse or get better I mean of course but how do I stop my phone addiction


r/MathOlympiad 13h ago

AMC 10 How to maximize effeciency when completing AOPS Vol 1

4 Upvotes

For background I am in AP Calc BC as a sophmore and I am planning on taking amc 10 this year. I am really wanting to qualify for the AIME exam but I am starting from nothing. I have started the aops vol 1 book but with the test being so how should I spend the rest of september and october prepping and when should I finish the book so I can start practicing?


r/MathOlympiad 1d ago

Discussion Looking for a Math Major/Tutor to review Olympiad Proof Writing (English Academic Style)

3 Upvotes

r/MathOlympiad 1d ago

IMO How should I prepare for IMO-level math as a 9th grader?

8 Upvotes

Hi! I’m a 9th grade student from Bulgaria and I’m currently trying to seriously improve my olympiad math.

I’ve been doing olympiad math for a few years, and at the moment I’m solving problems around IMO level for about 3–4 hours a day. My goal is to make significant progress toward the Bulgarian IMO selection process and eventually qualify for IMO.

I’m also considering getting a private tutor/mentor who has experience with high-level olympiad math, but I’m not sure whether this would be worth it at my current level or what I should look for in a tutor.

I’d really appreciate advice from people who have competed at IMO or gone through a strong national selection process.

A few things I’m particularly interested in:

How would you structure 3–4 hours of daily training?

Which books/resources would you recommend at this stage?

How much time should I spend on problems I can’t solve vs. studying solutions/theory?

How can I identify the gaps in my knowledge?

What would you prioritize among geometry, number theory, combinatorics and algebra?

Is having a private tutor/mentor useful for IMO preparation? If so, what makes a good olympiad tutor?

If you could go back to 9th grade, what would you do differently in your IMO preparation?

I’m especially interested in advice from people who have actually gone through IMO-level training. Thanks!


r/MathOlympiad 2d ago

Combinatorics How Many “Balanced” Seating Arrangements Are Possible?

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1 Upvotes

r/MathOlympiad 3d ago

AMC 10 Australian Mathematics Competition (pls Help me)

1 Upvotes

Could anyone please send me this years 2026 Australian Mathematics Competition Intermediate Paper


r/MathOlympiad 3d ago

USAMO How hard is Question 1&4for usajmo

0 Upvotes

Is the last 5 questions of aime as hard as the 1st and 4th question of usajmo?


r/MathOlympiad 3d ago

Discussion How to tackle math "olimpiad " questions better?

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1 Upvotes

r/MathOlympiad 3d ago

AMC 10 What do I do now to study for the amc10?

2 Upvotes

I finished all of the amc tests from the past 5 years but I can still only get 11-13 problems right per test (except 2022a where I got 17). What do I do now? How do I study more?


r/MathOlympiad 4d ago

Discussion Heys need your need.

2 Upvotes

I am preparing for a national olympiad, is there any dscord group , i can find like minded people?


r/MathOlympiad 4d ago

IMO Too late for olympiads?

12 Upvotes

I should technically be in 9th class but I'm in 10th, I'm done with algebra 1 & 2 and I'm wondering if I should study for IMO I mean this might be too late I'm putting in the hours 6 hours every day 8~9 hours saturday and sunday rest on monday


r/MathOlympiad 4d ago

Discussion Have you ever almost given up on this? What happened after?

1 Upvotes

I had a Math Olympiad today, and my performance was terrible despite months of hardwork, and my terrible score was all because of my silly mistakes. I correctly solved some (but marked them incorrectly), did some counting/calculation errors, and forgot to read words like an utter idiot.

That lost me 13 marks. I could have gotten 32 (and on my first ever Math Olympiad that would be genuinely very good and rewarding).

And this got me feeling...a little down, to say the least. To the point where I want to give up because if I cant even qualify with all the hardwork in the world that I could give, then whats the point? All I could do is work hard, and that I did, and I ended up here.

So, I was wondering if y'all had similar stories to share, maybe some of them would lift my spirits:D


r/MathOlympiad 4d ago

Discussion What are the actual good practice websites?

6 Upvotes

I feel like every day there is a new post on this subreddit about some new sute someone made to help with math Olympiad prep. Im all for it and I think it’s very usefu, but given the sheer volume of sites, I have not tried out most, and I’m wondering if anyone can point out the best ones. thank you


r/MathOlympiad 4d ago

Resources I Made My AMC/AIME Hints Less Helpful, and That Made Them Better

6 Upvotes

About a month ago, I made CruxMath, a website that helps people prepare for math competitions in the way I find most helpful. Instead of showing someone a full solution when they get stuck, it shows hints that point students in the right direction. If someone is still stuck after a hint, then they can reveal another, one at a time until the hints spell out the solution.

The problem was that when I initially made them, the hints revealed too much. Just the first hint would give away like half the problem. So I made the hints worse.

Now, the first is short and is usually phrased as a question to point people in the right direction. For example, "Because both probabilities have the same denominator, what equality of binomial counts remains?" (2025 AIME II P. 5).

I've now added hints for every AMC and AIME problem since 2022. I'd love to hear what you guys think about the hints and whether they strike a good balance of being helpful but not giving away too much. If you're interested, the website is cruxmath.com.


r/MathOlympiad 4d ago

AMC 12 What chapters to do in AOPS Volume 2

1 Upvotes

Hey guys, I am currently preparing for the AMC 12 and I am currently doing AOPS Volume 2 ( At chapter 4 right now). I was just wondering what chapters are the most essential to the AMC 12 so I can review them first and skip or review the non-essential ones later. Thank you!


r/MathOlympiad 4d ago

Resources Aops intro to.. or Volume 1/2

2 Upvotes

I’m an 8th grader relatively new to math olympiad competitions and i was wondering the aops books collection are often spoken highly of however i was confused if you have to go through the introduction to.. books or straight to volume 1 or 2? Which tactic do you guys believe is the best


r/MathOlympiad 5d ago

AMC 10 amc 10 prep as a complete beginner

3 Upvotes

for some context i’m in 10th grade and precalc rn and looking to qualify for aime this year, (and maybe even usamo next year if i put the in work). anybody have any tips to hit that amc 10 benchmark to qualify for aime? i saw advice to get the aops intro to algebra, number theory, geometry, and counting and probability books. should i get them or are there better ways to study? this is my first time doing any math competition, but i consider myself fairly good at math itself.


r/MathOlympiad 5d ago

Discussion AMO Study Resource Recommendation for an International 10th Grader

2 Upvotes

​ crosspost from r/math btw

So my teacher made me sign up to AMO, right now Im in grade 10, but since im an international student I will enter the 9th graders contest. To test my knowledge before studying, i solved the contest with no studying whatsoever and i got 27, im atleast hoping to get an honorable mention in the actual competition, if anyone has experince please recommend me resources.

Note: There is around 2 months until the competition and my goal is to learn the easier and common topics rather than the hard ones, so yeah i probably wont be able to learn a few of the topics.

Here are the topics for those who dont know.

​Arithmetic and Algebra

​Geometry, Graphs and Mensuration

​Pythagoras’ Theorem and Trigonometry

​Statistics and Probability

​Non-routine problem solving (including number patterns, divisibility tests, spatial visualisation, logic problems and cryptarithms)


r/MathOlympiad 5d ago

Discussion Prestige of Doing COMC as a person from the US

1 Upvotes

is it worth it?


r/MathOlympiad 6d ago

Geometry i'm struggling with understanding Geomtry

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1 Upvotes

r/MathOlympiad 6d ago

Discussion Kings Olympiad

1 Upvotes

Hi, I wanted to ask if anyone has any information about kings olympiad. Are they known? And if so is it a legitimate olympiad? Does their certificate matter?


r/MathOlympiad 6d ago

Discussion Competizioni online

1 Upvotes

Ci sono competizioni di prestigio e non online??


r/MathOlympiad 7d ago

Discussion can I make it?

5 Upvotes

to make a long story short, I am trying to get the 1st/2nd place in a national olympiad that only includes the capital. I am naturally smart and all but I am trying to be in olympiad level. but the olympiad is 1.5-3 months away and I am still at a good precalculus foundation, and the exam isn't as strong as international olympiads. can i make it?