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Handley, Bill

Speed Mathematics: Secrets Skills for Quick Calculation

Handley, Bill - Speed Mathematics: Secrets Skills for Quick Calculation, ebook

14,90€

Ebook, ePUB with Adobe DRM
ISBN: 9781118039946
DRM Restrictions

Printing82 pages with an additional page accrued every 9 hours, capped at 82 pages
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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.

96 x 97 = 9312

4 3

It's that easy!

Author(s)
Publisher
John Wiley and Sons, Inc.
Publication year
2003
Language
en
Edition
1
Page amount
272 pages
Category
Natural Sciences
Format
Ebook
eISBN (ePUB)
9781118039946
Printed ISBN
9780471467311

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