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Math Brain Teasers

Math brain teasers require computations to solve.

Brain Teasers

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  Title Popularity Difficulty Submittedv  
76 After Square, But Before Cube *** ** 06/27/09 by whsprec
77 Once Prime, Always Prime *** ** 06/21/09 by whsprec
78 Square Peg *** ** 03/28/09 by mosca
79 Lines and Dots ** ** 02/23/09 by Jarhead
80 Beep Beep Beep ** *** 02/23/09 by bigSWAFF_69_
81 Half Again As Big *** **** 02/17/09 by javaguru
82 Less Than a Google *** *** 02/16/09 by javaguru
83 Six Villages *** **** 02/14/09 by javaguru
84 Rex and Ralph: Mystery Number *** **** 02/02/09 by javaguru
85 Rex and Ralph: Polygonal House *** **** 01/28/09 by javaguru
86 What Am I? *** ** 01/22/09 by Lord_Hawk
87 Greatest Product *** *** 01/20/09 by javaguru
88 4+4+4+4=2! *** *** 01/17/09 by javaguru
89 Rex and Ralph: Prime Clues *** **** 01/17/09 by javaguru
90 How Many Doctors *** ** 01/09/09 by fishmed

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