Answer sheet
2021 AMC Fall 10A
25 problems · 75 minutes. Print this, do the paper, then type the answers in to have it scored and filed.
The marking key prints on its own sheet, after the answer sheet. Keep that page — it carries the correct answers and each problem's topic.
2021 AMC Fall 10A — answer sheetAMC 10 Step by Step
Name: Date: September 13, 2026
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Correct ____ × 6 = ______Blank ____ × 1.5 = ______Score ________
2021 AMC Fall 10A — marking keyAMC 10 Step by Step
Name: Date: September 13, 2026
Keep this sheet. The topic column says what to practise next, not just what was wrong.
Marking key
| # | Answer | Topic | Difficulty |
|---|---|---|---|
| 1 | C | Algebraic Manipulation | 1 / 5 |
| 2 | E | Linear Equations & Word Problems | 1 / 5 |
| 3 | D | Solid Geometry | 1 / 5 |
| 4 | B | Linear Equations & Word Problems | 1 / 5 |
| 5 | E | Primes | 2 / 5 |
| 6 | B | Linear Equations & Word Problems | 2 / 5 |
| 7 | D | Angles & Polygons | 2 / 5 |
| 8 | B | Bases & Digits | 2 / 5 |
| 9 | E | Basic Probability | 2 / 5 |
| 10 | B | Statistics & Data | 2 / 5 |
| 11 | A | Linear Equations & Word Problems | 3 / 5 |
| 12 | D | Modular Arithmetic | 2 / 5 |
| 13 | D | Basic Probability | 3 / 5 |
| 14 | D | Absolute Value & Inequalities | 3 / 5 |
| 15 | C | Circles | 3 / 5 |
| 16 | D | Functions | 3 / 5 |
| 17 | D | Solid Geometry | 3 / 5 |
| 18 | C | Arrangements with Restrictions | 3 / 5 |
| 19 | A | Circles | 4 / 5 |
| 20 | B | Quadratics | 3 / 5 |
| 21 | E | Basic Counting | 3 / 5 |
| 22 | B | Solid Geometry | 4 / 5 |
| 23 | D | Divisibility & Factors | 4 / 5 |
| 24 | E | Arrangements with Restrictions | 4 / 5 |
| 25 | A | Quadratics | 5 / 5 |