Do high-speed, complicated arithmetic in your head using the Trachtenberg Speed System.
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Jakow Trachtenberg was a Jewish mathematician who developed the mental calculation techniques called the Trachtenberg system. He was born in Odessa, the Russian empire in 1988 and worked as an engineer in the Obukhov arms factory. He was a dedicated pacifist and instrumental in organising the Society of Good Samaritans when the First World War broke out. After the Russian revolutions of 1917, Trachtenberg fled to the Weimar Republic where he was later critical of Nazi policies and imprisoned in a concentration camp during World War II. He developed his system of mathematics during his imprisonment. He died in 1953.
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Destinazione, tempi e costiDa: Better World Books Ltd, Dunfermline, Regno Unito
Condizione: Good. Ships from the UK. Used book that is in clean, average condition without any missing pages. Codice articolo 8853775-6
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Da: WorldofBooks, Goring-By-Sea, WS, Regno Unito
Paperback. Condizione: Good. The book has been read but remains in clean condition. All pages are intact and the cover is intact. Some minor wear to the spine. Codice articolo GOR001363810
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Da: AwesomeBooks, Wallingford, Regno Unito
Paperback. Condizione: Very Good. The Trachtenberg Speed System of Basic Mathematics This book is in very good condition and will be shipped within 24 hours of ordering. The cover may have some limited signs of wear but the pages are clean, intact and the spine remains undamaged. This book has clearly been well maintained and looked after thus far. Money back guarantee if you are not satisfied. See all our books here, order more than 1 book and get discounted shipping. Codice articolo 7719-9780285629165
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Da: Bahamut Media, Reading, Regno Unito
Paperback. Condizione: Very Good. This book is in very good condition and will be shipped within 24 hours of ordering. The cover may have some limited signs of wear but the pages are clean, intact and the spine remains undamaged. This book has clearly been well maintained and looked after thus far. Money back guarantee if you are not satisfied. See all our books here, order more than 1 book and get discounted shipping. Codice articolo 6545-9780285629165
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Da: Rarewaves.com UK, London, Regno Unito
Paperback. Condizione: New. Main. Do high-speed, complicated arithmetic in your head using the Trachtenberg Speed System.Ever find yourself struggling to check a bill or a payslip? With The Trachtenberg Speed System you can. Described as the 'shorthand of mathematics', the Trachtenberg system only requires the ability to count from one to eleven. Using a series of simplified keys it allows anyone to master calculations, giving greater speed, ease in handling numbers and increased accuracy.Jakow Trachtenberg believed that everyone is born with phenomenal abilities to calculate. He devised a set of rules that allows every child to make multiplication, division, addition, subtraction and square-root calculations with unerring accuracy and at remarkable speed. It is the perfect way to gain confidence with numbers. Codice articolo LU-9780285629165
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Da: WorldofBooks, Goring-By-Sea, WS, Regno Unito
Paperback. Condizione: Very Good. Do high-speed, complicated arithmetic in your head using the Trachtenberg Speed System. Ever find yourself struggling to check a bill or a payslip? With The Trachtenberg Speed System you can. Described as the 'shorthand of mathematics', the Trachtenberg system only requires the ability to count from one to eleven. Using a series of simplified keys it allows anyone to master calculations, giving greater speed, ease in handling numbers and increased accuracy. Jakow Trachtenberg believed that everyone is born with phenomenal abilities to calculate. He devised a set of rules that allows every child to make multiplication, division, addition, subtraction and square-root calculations with unerring accuracy and at remarkable speed. It is the perfect way to gain confidence with numbers. The book has been read, but is in excellent condition. Pages are intact and not marred by notes or highlighting. The spine remains undamaged. Codice articolo GOR001217891
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Da: Majestic Books, Hounslow, Regno Unito
Condizione: New. pp. 270. Codice articolo 7859356
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Da: Kennys Bookshop and Art Galleries Ltd., Galway, GY, Irlanda
Condizione: New. 1989. New Ed. Paperback. Translator(s): McShane, R.; Cutler, A. Num Pages: 272 pages. BIC Classification: PB. Category: (G) General (US: Trade). Dimension: 198 x 128 x 20. Weight in Grams: 188. . . . . . Codice articolo V9780285629165
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Da: Rarewaves.com USA, London, LONDO, Regno Unito
Paperback. Condizione: New. Main. Do high-speed, complicated arithmetic in your head using the Trachtenberg Speed System.Ever find yourself struggling to check a bill or a payslip? With The Trachtenberg Speed System you can. Described as the 'shorthand of mathematics', the Trachtenberg system only requires the ability to count from one to eleven. Using a series of simplified keys it allows anyone to master calculations, giving greater speed, ease in handling numbers and increased accuracy.Jakow Trachtenberg believed that everyone is born with phenomenal abilities to calculate. He devised a set of rules that allows every child to make multiplication, division, addition, subtraction and square-root calculations with unerring accuracy and at remarkable speed. It is the perfect way to gain confidence with numbers. Codice articolo LU-9780285629165
Quantità: Più di 20 disponibili
Da: Kennys Bookstore, Olney, MD, U.S.A.
Condizione: New. 1989. New Ed. Paperback. Translator(s): McShane, R.; Cutler, A. Num Pages: 272 pages. BIC Classification: PB. Category: (G) General (US: Trade). Dimension: 198 x 128 x 20. Weight in Grams: 188. . . . . . Books ship from the US and Ireland. Codice articolo V9780285629165
Quantità: Più di 20 disponibili