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The Trachtenberg Speed System of Basic Mathematics
-14 %

The Trachtenberg Speed System of Basic Mathematics

175 kr

175 kr

Tidigare lägsta pris:

204 kr

I lager

Tor, 5 jun - tor, 12 jun


Säker betalning

14-dagars öppet köp


Säljs och levereras av

Adlibris

Produktbeskrivning

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.

Artikel.nr.

f94882e4-ad2f-462d-b826-fa63b96de74d

Egenskaper

Slag

Vetenskap & natur

Språkversion

Engelska

Bokomslagstyp

Pocket

Antal sidor

272 sidor

Föreslagen målgrupp

Alla

Skrivet av

Jakow Trachtenberg, Ann Cutler , Rudolph McShane

Utgivare

Profile Books

Släpp datum

June 1989

The Trachtenberg Speed System of Basic Mathematics

175 kr

175 kr

Tidigare lägsta pris:

204 kr

I lager

Tor, 5 jun - tor, 12 jun


Säker betalning

14-dagars öppet köp


Säljs och levereras av

Adlibris