AMC 8 Study Guide 2026
Everything you need to pass the AMC 8 exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 AMC 8 Exam Format at a Glance
25
Questions
40 min
Time Limit
72%
Passing Score
📚 AMC 8 Topics to Study (23)
AMC8 · 9 cardsAMC8 · 9 cardsData Analysis & Statistics · 7 cardsData Analysis & Statistics · 7 cardsData Analysis & Statistics · 7 cardsAlgebra & Patterns · 6 cardsAlgebra & Patterns · 6 cardsAlgebra & Patterns · 6 cardsFractions, Decimals & Percents · 6 cardsFractions, Decimals & Percents · 6 cardsFractions, Decimals & Percents · 6 cardsGeometry & Measurement · 6 cardsGeometry & Measurement · 6 cardsGeometry & Measurement · 6 cardsNumber Theory & Divisibility · 6 cardsNumber Theory & Divisibility · 6 cardsNumber Theory & Divisibility · 6 cardsProbability & Counting · 6 cardsProbability & Counting · 6 cardsProbability & Counting · 6 cardsWord Problems & Logic · 6 cardsWord Problems & Logic · 6 cardsWord Problems & Logic · 6 cards
✍️ Sample AMC 8 Questions & Answers
1. Two angles of a triangle are 55° and 75°. What is the third angle?
✓ 50°
The angles sum to 180°, so the third angle = 180° − 55° − 75° = 50°.
2. A square has area 144. What is its perimeter?
✓ 48
Side = √144 = 12, so perimeter = 4 × 12 = 48.
3. What is the greatest common factor (GCF) of 48 and 36?
✓ 12
The GCF of 48 and 36 is 12, since 12 divides both and no larger number does.
4. Express 0.625 as a fraction in lowest terms.
✓ 5/8
0.625 = 625/1000 = 5/8 after dividing numerator and denominator by 125.
5. Mike read 1/4 of a book on Monday and 1/3 on Tuesday. What fraction of the book remains?
✓ 5/12
He read 1/4 + 1/3 = 3/12 + 4/12 = 7/12, leaving 1 − 7/12 = 5/12.
6. A container holds 50 red, 40 blue, and 10 green marbles. What percent are blue?
✓ 40%
Total marbles = 100, and 40 are blue, so blue percent = 40/100 = 40%.
🎯 Free AMC 8 Practice Tests
AMC8 · 9 questionsAMC8 · 9 questionsData Analysis & Statistics · 7 questionsData Analysis & Statistics · 7 questionsData Analysis & Statistics · 7 questionsFractions, Decimals & Percents · 6 questionsGeometry & Measurement · 6 questionsNumber Theory & Divisibility · 6 questionsFractions, Decimals & Percents · 6 questionsProbability & Counting · 6 questions
📖 AMC 8 Guides & Articles
Your AMC 8 Study Path
1. Learn with Flashcards → 2. Drill Practice Tests → 3. Take the Full Exam Simulation
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