Page 110 - บทที่ 1
P. 110

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                IQKIVlLJJJVn   •unvi    TU1V1  14 - 9        =                  4 + 5        =



                 7 + 2 =                        4 - 3        =                16 - 8         =



                 3x8 =                          1 + 8        =                  7 + 8        =


                 9 + 9 =                        5x9          =                   3x6         =



                 8 - 4 =                        8 + 6        =                  9 - 4        =


                  2x2 =                         7x2          =                   1x5          =



                 9 - 8 =                        9 - 5        =                  7 + 1         =



                 8 + 0 =                        7 + 3        =                   2x6          =


               10 - 3 =                       13 - 6         =                   3x9          =



                  6x3 =                         4 + 3        =                  5 - 5         =


                 4 + 9 =                        7x9          =                   6 + 8        =



                 6 + 7 =                      10 - 6         =                   4x7          =



               13 - 5 =                         3 + 9        =                15 - 6          =


                  4x8 =                          6x6         =                   5x2          =



                 9 + 2 =                        5 - 3        =                10 - 9          =


               18 - 9 =                       11 - 3         =                   9x3          =



                  5 + 7 =                        2x9         =                   9 + 8        =


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