The Trachtenberg Speed System of Basic Mathematics

Գրքի շապիկի երեսը
Souvenir Press, 01 մրտ, 2011 թ. - 272 էջ

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.

 

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Բովանդակություն

RAPID MULTIPLICATION BY THE DIRECT METHOD
16
SPEED MULTIPLICATIONTWOFINGER METHOD
34
ADDITION AND THE RIGHT ANSWER
52
DIVISIONSPEED AND ACCURACY
70
SQUARES AND SQUARE ROOTS
78
ALGEBRAIC DESCRIPTION OF THE METHOD
94
POSTSCRIPT
119
Հեղինակային իրավունք

Այլ խմբագրություններ - View all

The Trachtenberg Speed System of Basic Mathematics

Հատվածի դիտում - 1981
The Trachtenberg Speed System of Basic Mathematics
Ann Cutler
Հատվածի դիտում - 1960
The Trachtenberg Speed System of Basic Mathematics
Jakow Trachtenberg
Դիտել հնարավոր չէ - 2011
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Common terms and phrases

actual add half add the neighbor adding algebra arithmetic calculation chapter check-figure correct course cross-product diagram divide division divisor column double easy elevens-remainder equation error example find the digit-sum Find the square Fourth step given number gives half the neighbor happens inside pairs instance Jakow Trachtenberg last digit last figure last step left-hand digit left-hand figure long division long number mathematics mental minus multiplicand multiplication tables multiply any number Notice NT product number is odd pair of digits pair-product pairs of numbers parentheses partial dividend practice problem procedure product rule quotient reduce remember result right answer right-hand digit right-hand figure running total second digit Second step simply single digit single figure square root Suppose we wish take half tens-digit Third step tick Trachtenberg method Trachtenberg system two-digit multipliers two-digit numbers two-figure number units-and-tens units-digit wish to multiply working-figure write written zero in front

Հեղինակի մասին (2011)

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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ՎերնագիրThe Trachtenberg Speed System of Basic Mathematics
ՀեղինակJakow Trachtenberg
Թարգմանիչ.Ann Cutler, Rudolph McShane
Editionrevised
ՀրատարակիչSouvenir Press, 2011
ISBN0285639951, 9780285639959
Length272 էջ
  
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