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The Trachtenberg Speed System of Basic Mathematics Ann Cutler
The Trachtenberg Speed System of Basic Mathematics
Ann Cutler
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. It looks like magic, but the rules are based on sound logic.
272 pages
| Medios de comunicación | Libros Hardcover Book (Libro con lomo y cubierta duros) |
| Publicado | 4 de febrero de 1982 |
| ISBN13 | 9780313232008 |
| Editores | ABC-CLIO |
| Páginas | 272 |
| Dimensiones | 139 × 224 × 21 mm · 421 g |
| Lengua | Inglés |
| Traductor | Cutler, Ann |
| Traductor | McShane, Rudolph |