Trachtenberg Speed System of Basic Mathematics
Inbunden, Engelska, 1982
2 109 kr
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Fri frakt för medlemmar vid köp för minst 249 kr.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.
Produktinformation
- Utgivningsdatum1982-02-04
- Mått140 x 216 x 21 mm
- Vikt454 g
- FormatInbunden
- SpråkEngelska
- Antal sidor272
- FörlagBloomsbury Publishing Plc
- ISBN9780313232008
- ÖversättareCutler, Ann, McShane, Rudolph