Speed Mathematics - Secret Skills for Quick Calculation
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Ciğerci
Posts : 885 Points : 2655 Join date : 2010-12-24
Subject: Speed Mathematics - Secret Skills for Quick Calculation Fri Dec 24, 2010 10:45 am
Speed Mathematics - Secret Skills for Quick Calculation
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Using this book will improve your understanding of math and have you performing like a genius!
People who excel at mathematics use better strategies than the rest of us; they are not necessarily more intelligent.
Speed Mathematics teaches simple methods that will enable you to make lightning calculations in your head�including multiplication, division, addition, and subtraction, as well as working with fractions, squaring numbers, and extracting square and cube roots. Here�s just one example of this revolutionary approach to basic mathematics:
96 x 97 = Subtract each number from 100.
96 x 97 = 4 3
Subtract diagonally. Either 96�3 or 97� 4. The result is the first part of the answer.
96 x 97 = 93 4 3
Multiply the numbers in the circles. 4 x 3 = 12. This is the second part of the answer.
Subject: Speed Mathematics - Secret Skills for Quick Calculation 
Fri Dec 24, 2010 10:45 am
