2049:-
Uppskattad leveranstid 7-11 arbetsdagar
Fri frakt för medlemmar vid köp för minst 249:-
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.
- Illustratör: Rudolph Matas McShane
- Format: Trade
- ISBN: 9780313232008
- Språk: Engelska
- Antal sidor: 272
- Utgivningsdatum: 1983-01-01
- Översättare: Rudolph McShane Ann Cutler
- Förlag: Greenwood Pub Group