How to Prepare for AMC 8: A Complete Guide
Everything you need to know about preparing for the AMC 8, from study strategies to practice tips.
What is the AMC 8?
The AMC 8 is a 25-question, 40-minute multiple-choice exam for students in grade 8 and below. It covers topics from the middle school math curriculum including arithmetic, algebra, counting, geometry, number theory, and probability.
Unlike AMC 10/12, there is no penalty for wrong answers β so you should always guess if unsure. The maximum score is 25.
When Should You Start Preparing?
Ideally, start 3-6 months before the exam. If you are in 6th or 7th grade, starting early gives you time to build problem-solving intuition without cramming.
A consistent 20-30 minutes of daily practice is far more effective than marathon weekend sessions.
π‘ Set a daily practice goal of 5-10 problems. Consistency beats intensity.
Key Topics to Master
Focus on these four core areas: (1) Arithmetic & Number Theory β divisibility, primes, LCM/GCD, modular arithmetic. (2) Algebra β equations, inequalities, word problems. (3) Geometry β area, perimeter, angles, similar triangles, circles. (4) Counting & Probability β permutations, combinations, basic probability.
AMC 8 problems 1-15 are generally straightforward. Problems 16-25 require creative thinking and combining multiple concepts.
Study Strategy
Start by taking a diagnostic test to identify your weak areas. Then focus your practice on those topics while maintaining skills in your strong areas.
Work through past AMC 8 exams (2000-2024) chronologically. After each problem, read the solution carefully β even for problems you got right. Understanding multiple solution approaches builds flexibility.
π‘ Use AMC Mentor's diagnostic test to pinpoint your weak spots instantly.
π‘ Review wrong answers the next day β spaced repetition helps retention.
Test Day Tips
Read each problem carefully. Many AMC 8 mistakes come from misreading the question, not from lack of knowledge.
Do the easy problems first (1-15), then tackle the harder ones. Since there is no penalty for guessing, never leave a question blank.
If stuck on a problem for more than 2 minutes, mark it and move on. Come back to it after finishing the easier problems.