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Speed Mathematics: Secret Skills for Quick Calculation

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Speed Mathematics: Secret Skills for Quick Calculation

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.

96 x 97 = 9312
4 3

It's that easy!

Country	USA
Author	Bill Handley
Binding	Paperback
EAN	9780471467311
Edition	1
ISBN	0471467316
Label	Wiley
Manufacturer	Wiley
NumberOfItems	1
NumberOfPages	272
PublicationDate	2003-10-20
Publisher	Wiley
Studio	Wiley
ReleaseDate	0000-00-00

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