Rapid Math Tricks & Tips: 30 Days to Number Power

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Master common math problems without a calculator! Award-winning math teacher Ed Julius covers more than 60 powerful math tips and techniques in his entertaining 30-day program. For example, multiply any two-digit number by 11 simply by splitting apart the two digits, adding them, and placing the sum in the middle (45 x 11 = 495 because 4 + 5 = 9).

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Sunshine82

Feb 1, 2008

Very informative

This is a very informative book and very easy to understand. I liked it so much, I bought the 2nd book too. It is very useful in teaching math tricks.

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