http://www.amazon.com/Self-Working-Number-Magic-Foolproof-Tricks/dp/0486243915
Clear instructions for 101 tricks and problems, many based on important math principles. Calculations have been concealed; tricks are carefully streamlined for quick understanding and flawless performance. Master such number phenomena as Lightning Calculations, Giant Memory, Magic Squares, nearly 100 more. 98 illustrations.
Self-Working Number Magic by Karl Fulves
- Product Code: B2#57
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C$2.92
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Tags: Self-Working Number Magic by Karl Fulves, Ebooks