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Packed with 50 tricks and tips that let you add, subtract, multiply, and divide in a flash, makes math easier and more fun than you've ever imagined. You won't need a calculator, or in many cases even a pencil, to come up with the correct answers. Just a few simple shortcuts will have you solving basic problems in record time.

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  • ISBN 13: 9780471106395
  • ISBN 10: 0471106399
  • Publisher:
  • Language: English
  • Pages: 142
  • Size: 9.00" l x 6.02" w x 0.48" h

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