How to Calculate Quickly
Full Course in Speed Arithmetic
Many useful procedures explained and taught: 2-column addition, left-to-right subtraction, mental division of large numbers, more. Also numerous helpful shortcuts. More than 8,000 problems, with solutions. 1945 edition.
Specificaties
| ISBN/EAN | 9780486202952 |
| Auteur | Henry Sticker |
| Uitgever | Van Ditmar Boekenimport B.V. |
| Taal | Engels |
| Uitvoering | Paperback / gebrocheerd |
| Pagina's | 192 |
| Lengte | 220.0 mm |
| Breedte | 140.0 mm |