Wow! eBook
The Trachtenberg Speed System of Basic Mathematics New ed Edition
Author(s): Jakow Trachtenberg (Author)
- Publisher: Souvenir
- Publication Date: January 1, 1989
- Edition: New ed
- Language: English
- Print length: 272 pages
- ISBN-10: 0285629166
Book Description
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.
