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.