Speed Mathematics: Secret Skills for Quick Calculation - Brossura

Handley, Bill

Brossura

ISBN 10: 0471467316 ISBN 13: 9780471467311

Casa editrice: John Wiley & Sons Inc, 2003

Riassunto

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!

Su questo libro

L'autore:

BILL HANDLEY is recognized as an authority on teaching and study methods. His methods of teaching mathematics and his strategies for learning and thinking have achieved astonishing results in schools worldwide.

Product Description:

Book by Handley Bill

Su questa edizione

• Editore: John Wiley & Sons Inc
• Data di pubblicazione: 2003
• ISBN 10: 0471467316
• ISBN 13: 9780471467311
• Rilegatura: Copertina flessibile
• Numero edizione: 1
• Numero di pagine: 240