The Trachtenberg Speed System of Basic Mathematics
MIA KARTS BOOKS
The Trachtenberg Speed System of Basic Mathematics
Book details
- Language
- English
- Category
- Economics
- Condition
- New
- ISBN-10
- 0313232008
- Vendor: Mia Karts
The Trachtenberg Speed System of Basic Mathematics
$111.43 USD
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ISBN: 0313232008
Author: Jakow Trachtenberg
Condition: New
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.
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The Trachtenberg Speed System of Basic Mathematics
$111.43 USD
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