The Trachtenberg Speed System of Basic Mathematics
Jakow Trachtenberg
Profile Books Ltd, 1989
17,75 €On orderDelivery: 2-3 weeks
Do high-speed, complicated arithmetic in your head using the Trachtenberg Speed System.
- ISBN-13
- 9780285629165
- ISBN-10
- 0285629166
- Publisher
- Profile Books Ltd
- Year
- 1989
- Publication date
- 1989-06-29
- Pages
- 272
- Dimensions
- 194x123x18
- Weight
- 226