The Trachtenberg Speed System of Basic Mathematics |
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| ISBN: | 978-0-313-23200-8 |
| Publication Date: | Jan 1982 |
| Publisher: | ABC-CLIO, LLC
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| Imprint: | Greenwood |
| Book Format: | Hardback |
| List Price: | AUD $155.95 |
Book Description:
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The complete system of the Trachtenberg method of mathematics which makes possible high-speed arithmetical calculations with a remarkable degree of accuracy.
This method is not only speedy but simple. Once one has mastered the rules, lightning calculation is as easy as reading a story. It looks like magic, but the rules are based on sound logic.
The complete system of the Trachtenberg method of mathematics which makes possible high-speed arithmetical calculations with a remarkable degree of accuracy.
This method is not only speedy but simple. Once one has mastered the rules, lightning calculation is as easy as reading a story. It looks like magic, but the rules are based on sound logic.