mathcounts notes
The best math program for middle school students
Friday, November 28, 2025
2011 AIME II reflection notes from H
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2011 AIME II — Reflection Notes Correct: 8, 9, 10, 11, 14, 15 We did #10 during our lesson already. #15 – made a calculat...
Tuesday, November 4, 2025
Hints/links or Solutions to 2014 Harder Mathcounts State Sprint and Target question
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Links, notes, Hints or/and solutions to 2014 Mathcounts state harder problems. 2014, 2015 Mathcounts state are harder Sprint round: ...
Monday, October 27, 2025
2023 Mathcounts school sprint more challenging questions -- Thanks to Ani for trying these problems.
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#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
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✅ 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
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2021 Spring AMC 12A — Reflection Notes 1–16 right, 15 time sink . 18, 19, 23 also right — review #19 solution. ...
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