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Interactive Mathematics Miscellany and Puzzles - http://www.cut-the-knot.org/
Java-based math resource including articles, puzzles and links. |
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Mathpuzzle.com - http://www.mathpuzzle.com/
Celebrates math puzzles and mathematical recreations. |
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Nick's Mathematical Puzzles - http://www.qbyte.org/puzzles/
A collection of puzzles, with hints, solutions, and links to related mathematical topics. |
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A+ Math - http://www.aplusmath.com/
Interactive math help for K-12 students with flashcards, Math Wordfind, Homework Helper and worksheets. |
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Scott Kim - http://www.scottkim.com/
Puzzles for web, computers, and print; ambigrams. |
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Torus and Klein Bottle Games - http://www.geometrygames.org/TorusGames/index.html
Collection of Java-based educational puzzles. |
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Mathproblems.info - http://mathproblems.info/
Over one hundred and fifty math problems ranging from basic math to differential equations. |
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Colorful Mathematics - http://www.math.ucalgary.ca/~laf/colorful/colorful.html
Educational software presents advanced mathematics to K-12 students in a game-oriented approach, using coloring and drawing techniques to illustrate concepts from graph theory and computer science. |
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Wu's Riddles - http://www.ocf.berkeley.edu/~wwu/riddles/intro.shtml
A collection of riddles, puzzles, and technical interview questions, with a discussion forum. |
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The Little Math Puzzle - http://www.sprucelog.com/lmp/
The Little Math Puzzle has been a K-12 Internet activity since 1995 for grades 5-9. Currently the puzzles have ceased but the site maintains complete archives of past problems. |
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Ben Robinson's Cross-Number Puzzles - http://www.users.bigpond.com/bendr/xwd/numeric/index.html
A collection of cross-number puzzles: similar to crosswords, but using digits instead of letters. Many involve complex mathematical reasoning. |
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Mixed Up Math - http://www.kprobe.com/kprobe/mu.htm
Logic problems, where equations are mixed up. In various formats like boxes, crosses, diagonals, mazes. Free download. |
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MatheMajik - http://mathemajik.tripod.com/
Indian site featuring calculation tricks and math puzzles. |
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Dick's Math Puzzle Page - http://www.mod2.org/
A collection of mathematical puzzles, some original, with fully worked solutions. |
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MatheMagic - http://geocities.com/mathimoh/
A collection of mathematical puzzles, jokes and articles. |