Page 124 - Start Up Mathematics_1
P. 124

(f)  16 sandwiches among 4 people











                                           _______ ÷ _______ = _______



            Division as Repeated Subtraction


            You remember how the sports teacher divided 12 balls among 4 players.

            By giving 1 ball to each till all were distributed.

            This is the way of dividing by repeated subtraction.

            You will notice that while dividing 12 balls, he actually subtracted 4, 3 times from
            12.


                •  First he distributed 4 balls.                                      12 – 4 = 8

                •  Then he distributed 4 balls again.                                 8 – 4 = 4

                •  Finally he distributed the leftover 4 balls.                       4 – 4 = 0

            Thus, he distributed 12 balls in this way:                             12 – 4 – 4 – 4

            Or, we can say that he subtracted 4 three times from 12 to divide the balls.


            Thus, 12 ÷ 4 = 3.


              2   Divide by repeated subtraction. Correct the numbers in the circles wherever
                   needed. One example is done for you.



              (a)  12 ÷ 3 =  4


                                             3    3

                   12 –  3  –  3  –  2  –  2


              (b)  18 ÷ 6 =



                   18 –  6  –  3  –  3





         116
   119   120   121   122   123   124   125   126   127   128   129