Speed Mathematics: Secret Skills for Quick Calculation

Handley, Bill

ISBN 10: 0471467316 / ISBN 13: 9780471467311

Editore: Wiley, 2003

Good condition ex-library book with usual library markings and stickers. Codice articolo 00104456059

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!

Informazioni sull'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.

Dati bibliografici

Titolo: Speed Mathematics: Secret Skills for Quick ...
Casa editrice: Wiley
Data di pubblicazione: 2003
Legatura: Brossura
Condizione: Good