The Psychology of Arithmetic

Name: The Psychology of Arithmetic
Author: Thorndike, Edward L. (Edward Lee)

Thorndike, Edward L. (Edward Lee)

Arithmetic -- Study and teaching

Dividend      18                         19
  Divisor        2  3  4  5  6  7  8  9     2  3  4  5  6  7  8  9
  Number of
  Occurrences   69 49 13  6 28  7  7 23    21  6 10  5  3  4 10  4

  Dividend      20                      21
  Divisor        3  4  5  6  7  8  9     3  4  5  6  7  8  9
  Number of
  Occurrences   24 86 65 11  3 23  5    54 12  8  5 43 10  5

  Dividend      22                      23
  Divisor        3  4  5  6  7  8  9     3  4  5  6  7  8  9
  Number of
  Occurrences   17 16 15  8 13  6 15     7  8 11  8  6  3  2

  Dividend      24                      25
  Divisor        3  4  5  6  7  8  9     3  4   5 6  7  8  9
  Number of
  Occurrences   91 76 18 50  5 61  1    11 13 105 5  6  5  3

  Dividend      26                      27
  Divisor        3  4  5  6  7  8  9     3  4  5  6  7  8  9
  Number of
  Occurrences    5  6  3  3  4  6  3    46  8 10  4  2  6 25

  Dividend      28                       29
  Divisor        3  4  5  6  7  8  9     3  4  5  6  7  8  9
  Number of
  Occurrences    4 36  8  3 19  3  7     6  8  0  5 11  2  3

  Dividend      30                 31                 32
  Divisor        4  5  6  7  8  9   4  5  6  7  8  9   4  5  6  7  8  9
  Number of
  Occurrences   21 27 25  6  7 13   4  3  1  1  4  2  50 11  3  6 39  5

  Dividend      33                 34                 35
  Divisor        4  5  6  7  8  9   4  5  6  7  8  9   4  5  6  7  8  9
  Number of
  Occurrences    8  7  7  2  6  1   8  3  5  2  1  1  10 31  5 24  5  3

  Dividend      36                 37                 38
  Divisor        4  5  6  7  8  9   4  5  6  7  8  9   4  5  6  7  8  9
  Number of
  Occurrences   37 16 22  2  6 19   12 8  7  5  3  9   7  8  7  1  1  5

  Dividend      39             40            41            42
  Divisor        4 5 6 7 8 9    5 6 7  8 9    5 6 7 8 9     5  6  7  8 9
  Number of
  Occurrences    4 3 7 4 3 1   38 9 2 34 2    6 6 3 7 5     7 28 30 10 3

  Dividend      43             44            45            46
  Divisor        5 6  7 8 9     5 6 7 8 9     5 6 7  8  9   5 6 7 8 9
  Number of
  Occurrences    7 5 10 3 2     7 6 4 5 0    24 6 7 10 20   3 3 2 2 2

  Dividend      47             48            49            50
  Divisor        5 6 7 8 9      5  6 7  8 9   5 6  7 8 9    6 7 8 9
  Number of
  Occurrences    6 2 2 0 3      7 17 4 33 2   4 7 27 9 2    4 6 3 8

  Dividend      51         52           53         54
  Divisor        6 7 8 9    6 7 8 9      6 7 8 9    6 7 8  9
  Number of
  Occurrences    2 3 1 2    5 5 5 3      4 3 2 2    12 5 1 16

  Dividend      55         56           57         58         59
  Divisor        6 7 8 9    6  7  8 9    6 7 8 9    6 7 8 9    6 7 8 9
  Number of
  Occurrences    5 3 4 2    0 13 16 8    0 3 1 3    2 2 3 1    2 3 0 3

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The Psychology of ArithmeticThorndike, Edward L. (Edward Lee)

Science