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Menninger K. — Calculator's cunning. The art of quick reckoning
Menninger K. — Calculator's cunning. The art of quick reckoning



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Название: Calculator's cunning. The art of quick reckoning

Автор: Menninger K.

Язык: en

Рубрика: Computer science/

Статус предметного указателя: Готов указатель с номерами страниц

ed2k: ed2k stats

Год издания: 1964

Количество страниц: 131

Добавлена в каталог: 20.11.2012

Операции: Положить на полку | Скопировать ссылку для форума | Скопировать ID
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Предметный указатель
Abbreviated multiplication of decimals      45(b)
Addition      16—28
Addition, mental      21
Addition, test for      10
Approximation      62(a) 90—92
Arithmetical progression      23
Audit      25
Auxiliary number (divisibility)      79(a)
Beginning-squares      61(a)
Boundary estimate      90
Boundary-division      80—87
Calculator, for the experienced      17 24 32 34(d) 39 44 45 47 49 3 51 61(c) 62(c) 79 83 85 86 87 92 95
Capital value      98
Carry-over      22 6 24 70
Casting out 9-packets      6(b)1
Catching the wren      100
Chain of fractions      90
Column multiplication      49
Cross-multiplication      42—48
Cross-multiplication with 10-complement      47
Cross-multiplication with n-fold 10-complement      47
Cross-multiplication, double-digit      46
Cross-multiplicationof numbers with more digits      45
Cross-multiplicationof two-digit numbers      42
Cross-sum      2
Decimals      14 45 6 67 68 69 73 85 90 97(c)
Decimals, point rules      90
Discarding multiples      79
Distance in km      37
Divisibility by 11      77 78 79
Divisibility by 13      78 79
Divisibility by 7      77 79
Divisibility by any divisor      79
Divisibility rules      76—79
Divisibility rules for any divisor      79
Divisibility rules with auxiliary number      79(a)
Divisibility rules with complement-remainder      79(b)
Divisibility rules, simple      77
Division      76—88
Division by a boundary      73
Division by a number near a unit-boundary      85 86
Division by a prime number      87
Division by a unit-boundary      66
Division cross (boundary-division)      82
Division methods, boundary division      71 80—87
Division methods, unusual factor-division      71—79
Division of decimals      90
Division of decimals and subtraction at the same time      24
Division of decimals, short      70
Division of decimals, test for      9
Double of a two-digit number      26 2 29(b)
Double test      15
Double-digit, trick of the      46
Eleven-test      13 14
ER=eleven-remainder      13
Error of position      5(a) 15
Error, decimal point      5(a)
Error, typing      5(b)
Fabulous number      1001 78
Factor-division      71—75 97
Factor-division by a prime number      87
Factor-multiplication      57
Factorisation      57 76—79
Factorising and recombining      57
Finger-multiplication      100
Formula for difference of two squares      54 59 60 61(d) 62 64
Fractions, comparison of      96
Fractions, enlarging and contracting      97(a)
Fractions, transformation to decimals      73
Funnel-multiplication      45 6
Funnel-squaring      60
Group-vision      29(a)
Half of a number      26 2 29(b)
Key equation (percentages)      93
Large multiplication table      39
magic      11 37 78
Mathematician, for the      8 15 55 61(d)
Mental arithmetic      21 26 61 62 90
Mental arithmetic, semi      22(a)
Mirror-numbers      54
Miser, amusing story      78
Money sums      25 27
Multiplication      28—57
Multiplication by particular numbers      28—38
Multiplication of numbers near a boundary      50—56
Multiplication table      39—41
Multiplication table on the fingers      41(b)
Multiplication table, large      39
Multiplication table, medium      41(a)
Multiplication table, small      1 39
Multiplication, column      49
Multiplication, cross      42—48
Multiplication, devices for written      56
Multiplication, factor      57
Multiplication, special methods by sliding      45(a)
Negative numbers, work with      45 90
Neighbouring squares      64 9
Neighbouring squares, errors      5(b) 15
Neighbouring squares, multiples      5
Nine-test      2—12
Nine-test, certainty      6
NR = nine-remainder      8
Order of magnitude      1 5(a) 89
Original value      94
percentages      93—99
Percentages, formulae      95 98
Percentages, fundamental types of sum      94
Percentages, ground-value      94 98
Percentages, idea      94
Percentages, key equation      93 99
Percentages, original value      94 98
Percentages, percentage-ratio      93 96 97
Percentages, percentage-value      95
Percentages, stem-fractions, p-ratios      92 95 97 99
Point rules for decimals      90
Powers of      10 61 90
Powers of estimate with      90
Powers of working with      90
Prime numbers      76 87
Reading out large numbers      29(d)
Remainder calculation      8 6 13 15
Remainder calculation, rule (factor-division)      74
Retaining numbers      22(a) 70
Round numbers      1 90
Slide rule      90 97
Sliding method      45(a)
Slope as a percentage      96
Speeds, conversion      33(a)
Splitting up a number      21 26 29(a)
squares      58—65
Stem-fractions      92 93 97
Steps, working in      19
Subtraction      24—27
Subtraction by adding up      24
Subtraction from a unit boundary      27
Subtraction of several amounts from one, so-called audit      25
Subtraction, Austrian      24
Subtraction, mental      26
Subtraction, test for      11
Teachers of arithmetic, for      6 17 26 29(b) 41(a) 56 57 59 61 70 90 10
Teachers of arithmetic, packets      17 10
Teachers of arithmetic, powers      90
test      1—12 79
Test for decimals      14
Test for decimals, complement      26
Test for decimals, double test      15
Test for decimals, multiplication      3 9— 1—12 9—11
Test for decimals, powers      12
Test for decimals, roots      12
Test for decimals, rule (fabulous number)      78
Test for decimals, stem-fractions      92
Test for decimals, subtraction      11 25 37 79
Test, addition      10
Test, division      9 11 13 14
Two-digit numbers, working with      21 26 29
Unit-boundary      27 55 85 90
Unit-boundary, division by      66 79(b)
Zero-factor (test)      7
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