Torus Games
Math for America offers seven familiar games available to download from iTunes. The games introduce children ages 10 and up to the mind-stretching possibility of a "multiconnected universe." Games include: tic-tac-toe, mazes, crossword puzzles, word search puzzles, jigsaw puzzles, chess and pool.

Activities Integrating Math & Science (AIMS) Puzzle Corner
More than 100 math puzzles that can help students learn to enjoy puzzles and the mathematics behind them.

Cut-the-Knot
Mathematics puzzles in the topics of Algebra, Geometry, Logic, Combinatorics and Calculus.

Math Forum Problem of the Week
A feature of Drexel University's Math Forum website. Topics include pre-Algebra, Algebra, Geometry, Trigonometry and Calculus.

Math Puzzle.com
A collection of fun, challenging and creative puzzles, including variations on Sudoku puzzles and coin and chess-board puzzles.

XP Math
Math games, lesson plans, a database of mathematics careers and a discussion board.

Jeopardy Game Generator
Allows you to specify topics, questions and point values to make a computer-based "Jeopardy" game for your class.