All Sites

» A+ Math

Interactive math help for K-12 students with flashcards, Math Wordfind, Homework Helper and worksheets.

http://www.aplusmath.com/

» AIMS Puzzle Corner

Provides over 100 puzzles with the goal of creating an engaging learning environment.

http://www.aimsedu.org/puzzle/

» Aha! Puzzles

Puzzles, books, games and tests with designed by Lloyd King, author of "Test Your Creative Thinking".

http://www.ahapuzzles.com/

» Algebraic Math Puzzles

A collection of puzzles at high school level. Does not include answers.

http://www.lifesmith.com/mathpuz1.html

» Alien Tiles

Object of puzzle is to try to get color pieces to create certain patterns in cube.

http://www.alientiles.com/

» Alphametic Puzzles

Numerous puzzles, links, puzzle solver, and a generator.

http://www.tkcs-collins.com/truman/alphamet/

» Brain Teasers and Maths Puzzles

Interactive logical and mathematical puzzles with feedback and detailed solutions.

http://www.syvum.com/teasers/

» Brain Teasers by QBrute

Original brain teasers with solutions.

http://www.angelfire.com/empire/qbrute/

» Contest Center Cryptarithms

Examples of cryptarithms, with prize competitions for subscribers.

http://www.contestcen.com/rithms.htm

» Creative puzzles

Interactive puzzle archive with descriptions for puzzle construction and a special children's puzzle page.

http://www.creatievepuzzels.com/

» Dick's Math Puzzle Page

A collection of mathematical puzzles, some original, with fully worked solutions.

http://www.mod2.org/

» Downloadable and online games

A variety of Flash- and Java-based games and puzzles.

http://www.gameintellect.com/

» Free Puzzle Collections

Educational and recreational puzzles for teachers, students and parents. Each puzzle is graded by difficulty and has a hint. Solutions are available to members.

http://www.freepuzzles.com/

» Group Games

Animations that develop the theory behind such puzzles as the Rubik cube.

http://www.dmi.units.it/~logar/duek2/index_engl.html

» Interactive Mathematics Miscellany and Puzzles

Java-based math resource including articles, puzzles and links.

http://www.cut-the-knot.org/

» Logicville

Educational puzzles, brain teasers, and word games such as anagrams, cryptograms, alphametics, doublets, tangrams.

http://www.logicville.com/

» Magic Math Kingdom

Learn math through games and quiz-oriented tutorial.

http://www.nes-lab.com/english2/

» Math Puzzles

Logic puzzles and riddles with some solutions.

http://www.math.utah.edu/~cherk/puzzles.html

» MatheMajik

Indian site featuring calculation tricks and math puzzles.

http://mathemajik.tripod.com/

» Mathematical Recreations

Detailed exploration of a selection of mathematical topics.

http://www.mathrec.org/

» Mathpuzzle.com

Celebrates math puzzles and mathematical recreations.

http://mathpuzzle.com/

» Mathschallenge.net

A website dedicated to the puzzling world of mathematics, with a discussion forum.

http://mathschallenge.net/

» Mathwizz

Interactive math problems for abilities ranging from middle school to university.

http://www.mathwizz.com/

» Mixed Up Math

Logic problems, where equations are mixed up. In various formats like boxes, crosses, diagonals, mazes. Free download.

http://www.kprobe.com/kprobe/mu.htm

» Nick's Mathematical Puzzles

A collection of puzzles, with hints, solutions, and links to related mathematical topics.

http://www.qbyte.org/puzzles/

» Paul Hsieh's Puzzles

Logical and mathematical brain teasers, with an indication of difficulty. Hints are provided; solutions are available by email.

http://www.azillionmonkeys.com/qed/puzzles.html

» Perfect Times

Teaches and assesses fluency of multiplication and division tables using online cards. Submit data and compare results.

http://www.perfect-times.co.uk/

» Polyhedra Links

Pastime and activity links for various geometric patterns, polygons and polyhedra by Jill Britton.

http://britton.disted.camosun.bc.ca/jbpolyhedra.htm

» Puzzle of the Week Archives

A collection of puzzles, with hints and full solutions. Compiled by George Moody.

http://ecg.mit.edu/george/puzzles/

» Pythabacus

Description and instruction of using the ancient Pythagorean Abacus to do arithmetic.

http://www.pythabacus.com/

» Scott Kim

Puzzles for web, computers, and print; ambigrams.

http://www.scottkim.com/

» Storkey: Two Envelope Paradox

A tough but simply defined problem which demonstrates key issues in probability.

http://homepages.inf.ed.ac.uk/amos/doubleswap.html

» The Contest Center

Classic puzzles and riddles requiring only simple logic and elementary math.

http://www.contestcen.com/classic.htm

» The Enigmatic World of Philip Carter

Collection of brain teasers from the author of IQ books.

http://www.knowl.demon.co.uk/

» The Little Math Puzzle

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.

http://www.sprucelog.com/lmp/

» The Puzzling World of Barry R. Clarke

Brain teasers, articles and puzzles forum.

http://barryispuzzled.com/

» Torus and Klein Bottle Games

Collection of Java-based educational puzzles.

http://www.geometrygames.org/TorusGames/index.html

» Wu's Riddles

A collection of riddles, puzzles, and technical interview questions, with a discussion forum.

http://www.ocf.berkeley.edu/~wwu/riddles/intro.shtml

» Mathschallenge.net

A website dedicated to the puzzling world of mathematics. [RSS]

http://mathschallenge.net/rss2.xml

» Nick's Mathematical Puzzles

A collection of puzzles, with hints, solutions, and links to related mathematical topics. [RSS]

http://www.qbyte.org/puzzles/rss2.xml