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Trachtenberg Speed System of Basic Mathematics

Autor: Trachtenberg, Jakow

Disponibilitate: LIVRARE IN 2-4 SAPTAMANI (produsul este livrat din Marea Britanie)

SKU:
9780285629165

Pret standard 59,99 RON
(-17%)

Pret special 49,99 RON
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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.

Mai multe informatii
AutorTrachtenberg, Jakow
EdituraProfile Books Ltd
Dimensiuni194 x 123 x 18
Data Publicarii29/06/1989
FormatPaperback / softback
Numar pagini272
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Recenzati:Trachtenberg Speed System of Basic Mathematics
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