Speed Mathematics: Secret Skills for Quick Calculation - Couverture souple

Handley, Bill

Couverture souple

ISBN 10 : 0471467316 ISBN 13 : 9780471467311

Editeur : John Wiley & Sons Inc, 2003

Synopsis

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!

A propos du livre

À propos de l'auteur

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.

Détails de l'édition

• Éditeur: John Wiley & Sons Inc
• Date d'édition: 2003
• Langue: anglais
• ISBN 10: 0471467316
• ISBN 13: 9780471467311
• Reliure: Broché
• Nombre de pages: 272
• Coordonnées du fabricant: non disponible
• Personne responsable: non disponible