mathcounts notes
The best math program for middle school students
Monday, October 27, 2025
2023 Mathcounts school sprint more challenging questions -- Thanks to Ani for trying these problems.
›
#24 – Probability (Unfair Coin) Gloria has an unfair coin. Let \( p \) be the probability of heads, with \( \tfrac{1}{2} < p < 1...
Thursday, October 23, 2025
2021 spring AMC 12 B Reflection Notes from H
›
✅ Correct: 1–21 ❌ Wrong / Unanswered: #22 – Not sure of optimal strategy #23 – I got stuck with cases #24–25 – Didn’t attempt
Tuesday, October 21, 2025
2021 spring AMC 12 A Reflection Notes from H
›
2021 Spring AMC 12A — Reflection Notes 1–16 right, 15 time sink . 18, 19, 23 also right — review #19 solution. ...
Saturday, October 11, 2025
2016 AMC 12 B Reflection Notes from H
›
Student Reflection Wrong #20 no idea how to approach #23 Right approach 2 step away from right ...
Tuesday, October 7, 2025
2025 Mathcounts state more interested questions notes
›
target #4 : level 1.5 question, not hard at all. #5: number theory, learn mod or remainder (pattern) # 6 and #8 Good for AMC/ AIME preps...
‹
›
Home
View web version