Mehr zum Buch
First developed during WW2, the Trachtenberg speed system makes possible high-speed arithmetical calcula tions with a remarkable degree of accuracy. The system has e ven been known to beat computer calculations - in some insta nces - in terms of speed '
Buchkauf
The Trachtenberg speed system of basic mathematics translated and adapted by Ann Cutler and Rudolph McShane, Ann Cutler, Rudolph McShane
- Sprache
- Erscheinungsdatum
- 1962
- product-detail.submit-box.info.binding
- (Hardcover)
Wir benachrichtigen dich per E-Mail.
Lieferung
- Gratis Versand in ganz Österreich
Zahlungsmethoden
Keiner hat bisher bewertet.