Page 51 - บทที่ 1
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4 + 7 =                          1x2 =                        12-4


              6x9 =                        14 - 5        =                   8 + 4



             3 + 4 =                         7 + 3       =                   6-3



             9 - 3 =                          5x7 =                           5x3


             3 - 0 =                          9x4 =                          3 - 1



             9 + 4 =                       10 - 3        =                   9 + 9


              3x9 =                          3 + 8        =                   8x3



             5 - 2 =                       11 - 5 =                        11-3



             4 + 5 =                         8 + 1 =                          6 + 2


              5x4 =                           7x5 =                        12-8



           16 - 8 =                           7x6 =                           6x7



              9 - 7 =                         8 + 6       =                   7 + 6


              1 + 2 =                         6 - 2 =                         8x4



            12 - 9 =                          2 + 2       =                 13-4


              5 + 7 =                         8x5 =                           9x2



              4x5 =                        10 - 5         =                   4 + 6



              8 + 9 =                         3x8 =                                                       Qunvi

                                                                                                unvi
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