AMC 10 vs AMC 12: Which Contest Should You Prepare For?
A clear comparison of AMC 10 and AMC 12 preparation, topic differences, difficulty expectations, and how students can choose the right practice path.
Key facts
- Shared format
- Both: 25 questions · 75 minutes
- Eligibility
- AMC 10 ≤ grade 10 · AMC 12 ≤ grade 12
The contests overlap, but the preparation is not identical
Both the AMC 10 and AMC 12 are 25-question, 75-minute multiple-choice contests, scored 6 points for each correct answer, 1.5 for each blank, and 0 for each wrong answer, for a maximum of 150 (Mathematical Association of America). What differs is the curriculum they draw from.
They share many contest-math habits: careful reading, algebraic flexibility, geometry diagrams, counting structure, and number theory fluency.
AMC 12 reaches farther into high school math, so students need stronger comfort with topics such as trigonometry, logarithms, complex numbers, and advanced algebraic manipulation.
| AMC 10 | AMC 12 | |
|---|---|---|
| Grades | 10 & below | 12 & below |
| Age limit | Under 17.5 | Under 19.5 |
| Curriculum | Through 10th-grade math | Through 12th-grade math |
| Format | 25 questions, 75 minutes | 25 questions, 75 minutes |
| Scoring | 6 / 1.5 / 0 (max 150) | 6 / 1.5 / 0 (max 150) |
| AIME invite | Top ~2.5% (historical) | Top ~5% (historical) |
AMC 10 is usually the better first target for younger students
Students who are not yet comfortable with the broader high school curriculum often make faster progress by focusing on AMC 10 first.
A strong AMC 10 foundation also prepares students for many early AMC 12 problems and gives them a better path into AIME-style practice.
AMC 12 rewards breadth and execution
AMC 12 students should expect more advanced algebra, trigonometry, and less forgiving computations. The same problem-solving instincts still matter, but gaps in prerequisite math show up faster.
Preparation should mix topic review with timed practice so students build both recognition and execution.
How to choose a practice path
If a student is missing many middle questions on AMC 10 sets, focus there before stretching to AMC 12. If they are already comfortable with late AMC 10 questions, add AMC 12 and AIME-style problems gradually.
The right path is not about prestige. It is about practicing at the difficulty where mistakes are challenging but still learnable.
Common questions
Can a student prepare for both AMC 10 and AMC 12?
Yes, but practice should be sequenced. Build AMC 10 accuracy first, then add AMC 12 topics and harder mixed sets.
Is AMC 12 always harder than AMC 10?
AMC 12 covers a broader curriculum and can be harder for students without those prerequisites, although both contests include a wide range of problem difficulty.
How are the AMC 10 and AMC 12 scored?
Both give 6 points per correct answer, 1.5 points per unanswered question, and 0 for a wrong answer, for a maximum of 150 points (Mathematical Association of America).
Sources
- AMC 8, 10, and 12 eligibility, format, and scoringWikipedia · Mathematical Association of America
- AIME format, answer range, and qualification thresholdsWikipedia · Mathematical Association of America
Practice the ideas in this guide
Move from reading to solving with targeted MathGrit practice.
AMC 10 practice problems