Free Math Puzzles

A large, free library of riddles, geometry, number, and logic puzzles — including internationally recognized types like KenKen, Tangram, and Shikaku — sorted by category and by grade.

Four categories: Riddles (insight puzzles solved in one flash of cleverness, no calculation needed), Geometry (hands-on spatial puzzles like Tangram and Shape Shuffle), Number (arithmetic and place-value puzzles), and Logic (planning puzzles like KenKen and Shikaku, solved under strict rules).

Both — puzzles like KenKen and Shikaku build real logical reasoning and pattern recognition, and classroom puzzle use is linked to more positive attitudes toward math specifically, not just puzzles.

No — every puzzle is solvable with the math your child already knows for their grade. The challenge is in reasoning and pattern-finding, not a new formula.

A worksheet asks your child to apply a method they were just taught; a puzzle doesn't hand them the method — they have to find the structure themselves.

Riddles present a scenario and ask you to find a hidden certainty, usually solvable in one flash of insight. Logic puzzles ask you to plan a sequence of moves under strict rules — the challenge is in the planning, not a single spark of cleverness.

Mixed — KenKen, Tangram, and Shikaku are internationally recognized puzzle types (KenKen is even NYT-syndicated), and Frogs and Toads has decades of academic history. Others are built around real concepts, like the pigeonhole principle, presented as an original scenario.