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Math Brain Teasers

Math brain teasers require computations to solve.

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  Title Popularityv Difficulty Submitted  
136 Gauss and an Old Professor *** *** 06/05/06 by shenqiang
137 Difficult Danny *** ** 10/20/13 by eighsse
138 The Four-digit Number ABCD *** *** 04/14/11 by shenqiang
139 Squares and Cubes and Squares *** ** 06/24/05 by Tammy93
140 5-digit Numbers *** *** 04/20/03 by Mhalun
141 How many Parcels *** ** 01/22/02 by Cascas
142 A Drive Out of Town *** *** 02/13/06 by RainyMysteria
143 Colonial Cafe *** *** 07/13/06 by fishmed
144 Bike Contest *** ** 04/09/03 by PeaceJo
145 Magic Triangles *** ** 01/13/17 by MarcM1098
146 861 Candles *** *** 08/20/03 by mathemagician
147 Which Number? *** ** 06/23/05 by chidam11
148 Shipping Books *** ** 03/15/06 by Unstumpable
149 Roman Matches II *** ** 05/28/08 by MarcM1098
150 Rex and Ralph: Mystery Number *** **** 02/02/09 by javaguru

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