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           21 August, 2019
 
    
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Recreations

Records 1-6 of 6
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Cryptarithms Online (Popularity: )
http://cryptarithms.awardspace.us/
70 brain-teasers; a Primer on Cryptarithmetic; books and links to alphametics on the Web.

Math Cats (Popularity: )
http://www.mathcats.com/
A magic chalkboard takes you to a math art gallery and lots of interactive math activities, including: magic squares, conversions, ...

Mathematik (Popularity: )
http://www.mathematik.com/
Individual pages on different topics in Mathematics. Examples : group theory, dynamical systems theory, geometry or number theory.

Number Recreations by Shyam Sunder Gupta (Popularity: )
http://www.shyamsundergupta.com/
Features interesting facts about different numbers. Includes favorite related links.

Mathematische Basteleien (Popularity: )
http://www.mathematische-basteleien.de/
Topics include Flexagon, Soma Cube, Pentominos, Cube-it, Rubik's Cube, Froebel's Star, Tangram, House of Santa Claus, Chronogram, Numeric Palindromes, Latticework ...

Mathmos (Popularity: )
http://www.mathmos.net/
Includes puzzles, jokes, quotations, poetry, and FAQs.

sub categories
Competitions (17) Famous Problems Flexagons
Games and Puzzles (13) Magic Square (1) Polyominoes
Specific Numbers (7) Tessellations (1)