Page 47 - SK Year 5 Mathematics DLP
P. 47

UNKNOWN IN DIVISION


                   1                                                   Lucy will distribute
                                                                       all the bookmarks
                                                                      equally to 8 groups.

                                    40 bookmarks

                      Each group will receive q bookmarks. Find the value of q.
                                            40 ÷ 8 =  q

                                             q  = 40 ÷ 8
                                             q  = 5

                                            The value of q is 5.



                   2   1 800 ÷  m  = 18                    3    s  ÷ 24 = 3 190

                      What is the value of m?                 What is the value of s?

                                                           Relate division to
                         Simple example.                   multiplication.       Simple example.
                         8 ÷  2 = 4                                               8 ÷ 2 = 4
                               2 = 8 ÷ 4                                               8 = 4 × 2






                      1 800 ÷ m = 18                                      s ÷ 24 = 3 190
                                m = 1 800 ÷ 18                                  s = 3 190 × 24
                                m = 100                                         s = 76 560

                      1 800 ÷  100  = 18                                 76 560  ÷ 24 = 3 190
                      The value of m is 100.                            The value of s is 76 560.




                                                              Given that f ÷ 13 = 893.
                                                                 Find the value of f.



                   What are the values of w?

                    a  8 ÷ 4 = w   b  w ÷ 1 000 = 7   c  700 029 ÷ 9 = w   d  1 020 ÷ w = 68



                                                                                                       39
                                    • Carry out suitable simulation activities to enhance pupils’
                             1.8.2
                                      understanding in finding unknown values.
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