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- 270pages
- 10 heures de lecture
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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 '
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The Trachtenberg speed system of basic mathematics translated and adapted by Ann Cutler and Rudolph McShane, Ann Cutler, Rudolph McShane
- Langue
- Année de publication
- 1962
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- (rigide)
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- Titre
- The Trachtenberg speed system of basic mathematics translated and adapted by Ann Cutler and Rudolph McShane
- Langue
- Anglais
- Auteurs
- Ann Cutler, Rudolph McShane
- Publié
- 1962
- Format
- rigide
- Pages
- 270
- ISBN10
- 0285626787
- ISBN13
- 9780285626782
- Séries
- Mots clés
- Nonfiction, Science et Mathématiques, Manuels et guides, Science, Mathématiques, Éducation, système scolaire
- Description
- 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 '