Answer sheet
2008 AMC 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.
2008 AMC 10A — answer sheetAMC 10 Step by Step
Name: Date: September 13, 2026
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Correct ____ × 6 = ______Blank ____ × 1.5 = ______Score ________
2008 AMC 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 | D | Clocks, Calendars & Time | 1 / 5 |
| 2 | A | Ratios, Percents & Averages | 1 / 5 |
| 3 | A | Divisibility & Factors | 1 / 5 |
| 4 | C | Ratios, Percents & Averages | 1 / 5 |
| 5 | B | Algebraic Manipulation | 1 / 5 |
| 6 | D | Ratios, Percents & Averages | 2 / 5 |
| 7 | E | Exponents, Logarithms & Radicals | 2 / 5 |
| 8 | A | Ratios, Percents & Averages | 2 / 5 |
| 9 | B | Divisibility & Factors | 2 / 5 |
| 10 | E | Quadrilaterals & Polygon Areas | 2 / 5 |
| 11 | D | Linear Equations & Word Problems | 2 / 5 |
| 12 | C | Ratios, Percents & Averages | 2 / 5 |
| 13 | D | Linear Equations & Word Problems | 2 / 5 |
| 14 | D | Triangles: Area & Pythagorean | 2 / 5 |
| 15 | D | Linear Equations & Word Problems | 3 / 5 |
| 16 | B | Circles | 3 / 5 |
| 17 | B | Circles | 3 / 5 |
| 18 | B | Triangles: Area & Pythagorean | 3 / 5 |
| 19 | C | Transformations & Symmetry | 4 / 5 |
| 20 | D | Similar & Congruent Triangles | 4 / 5 |
| 21 | A | Solid Geometry | 4 / 5 |
| 22 | D | Basic Probability | 4 / 5 |
| 23 | B | Basic Counting | 4 / 5 |
| 24 | D | Modular Arithmetic | 4 / 5 |
| 25 | C | Circles | 5 / 5 |