Quick Arithmetic

Thirty simple tricks of mental arithmetic

Nonfiction, Science & Nature, Mathematics, Counting & Numeration, Arithmetic, Recreations & Games
Cover of the book Quick Arithmetic by Yakov Perelman, Prodinnova
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Author: Yakov Perelman ISBN: 1230000289059
Publisher: Prodinnova Publication: January 1, 2015
Imprint: Prodinnova Language: English
Author: Yakov Perelman
ISBN: 1230000289059
Publisher: Prodinnova
Publication: January 1, 2015
Imprint: Prodinnova
Language: English

This book is a collection of simple and easily grasped tricks to speed up your mental arithmetic. If you want to master them you should realize that to be used fully they need to be approached conscientiously, not mechanically. But it pays to master them as they will enable you to do calculations in your head without error, as with written calculations.

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This book is a collection of simple and easily grasped tricks to speed up your mental arithmetic. If you want to master them you should realize that to be used fully they need to be approached conscientiously, not mechanically. But it pays to master them as they will enable you to do calculations in your head without error, as with written calculations.

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