Page 121 - New Medley 1 Semester 2
P. 121

2.   20 – 4 = 16                        (4 is subtracted first time)

                    16 – 4 = 12                       (4 is subtracted second time)

                    12 – 4 = 8                        (4 is subtracted third time)


                     8 – 4 = 4                        (4 is subtracted fourth time)

                     4 – 4 = 0                        (4 is subtracted fifth time)

                   We say  20 ÷ 4 =                     . (         divided by                 is          )


                                   Division Using Number Line


        Suppose we have to divide 8 by 2.


                           4               3                2                1





                  0       1        2       3       4        5       6        7       8       9       10


        We start from 8 and hop back 2 units at a time till we reach 0.


        We note that it took 4 hops to reach 0.

        Hence   8 ÷ 2 = 4   [number of hops is the answer]



         A.  Fill in the blanks.

              1.                      3                          2                          1






                        0     1    2     3    4     5    6    7     8    9  10  11  12  13  14  15

                                                      ÷         =

              2.                4                3               2                1





                        0     1    2     3    4     5    6    7     8    9  10  11  12  13  14  15


                                                      ÷         =




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