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Browse 963 curated problems by exam, concept, or grade level.

8
AMC 8
Middle school · Grades 4–8
650 problems

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Number Theory

# Units Digit 7 ↻ Modular Cycles 18 ∑ Pair Sum 13 ÷ Expression Decomp. 291 × Ratio Constraints 42

Geometry

▭ Area Decomp. 108 ⊕ Coordinate Geometry 26 ☐ 3D Folding 4 ✦ Paper Symmetry 5 → Path Length 6

Counting

⬡ State Enumeration 43 ▤ Position Casework 38 ∩ Overlap & Complement 48 ⊞ Grid Patterns 20 ▦ Tiling 7

Algebra

⏱ Rates & Time 11 ⚙ Constrained Search 216