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The Trachtenberg Speed System of Basic Mathematics | 1:a upplagan
- Danskt band, Engelska, 1989
- Författare: Jakow Trachtenberg
- Betyg:
162
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Beskrivning
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.
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.
Om denna bok
The Trachtenberg Speed System of Basic Mathematics av Jakow Trachtenberg är en Danskt band bok med 272 sidor på Engelska. Detta är den 1:a upplagan som utgavs 1989.
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Produktinformation
Kategori:
Matematik & statistik
Bandtyp:
Danskt band
Språk:
Engelska
ISBN:
9780285629165
Upplaga:
1
Utgiven:
1989-06-29
Förlag:
Okänt
Sidantal:
272