Page 87 - SK Year 5 Mathematics DLP
P. 87

3                                 What is the length of each part of the lace?
                       Lucy, please cut this
                        lace into 10 parts of       9.25 m ÷ 10 =          m
                           equal length.
                                                      Method 1         0 . 9 2 5        Method 2
                                                                  10 9 . 2 5 0
                                                                     −0                 9.25 ÷ 10
                                                                       9 2              = 0.925
                                                                     −9 0
                                                                          2 5
                                                                       − 2 0
                                                                             5 0
                                                                          − 5 0
                        9.25 m
                                                                               0
                           9.25 m                      9.25 m ÷ 10 =  0.925  m

                                                        The length of each part of the lace
                                                        is 0.925 m.


                  4 54.9 ÷ 100 =                            5 8 973 ÷ p = 8.973          The value of p
                      5 4 . 9  ÷ 100 = 0.549                                                is 1 000.
                                                                8 973 ÷ 1 = 8 973
                      54.9 ÷ 100 =  0.549
                                                                8 973 ÷ 10 = 897.3
              To DIVIDE, shift the decimal point                8 973 ÷ 100 = 89.73
                          to the LEFT.
                                                                8 973 ÷ 1 000 = 8.973
                 ÷ 10        one decimal place
                 ÷ 100      two decimal places                  8 973 ÷  1 000  = 8.973
                 ÷ 1 000   three decimal places







                  1  Divide.

                      a  54.965 ÷ 5 =            b  937.5 ÷ 15 =            c  85.015 ÷ 49 =

                      d  102.56 ÷ 10 =          e  6.98 ÷ 10 =              f  501.2 ÷ 100 =
                      g  137 ÷ 100 =             h  46 ÷ 1 000 =            i  9 ÷ 1 000 =


                  2  What are the values of h ?
                      a  30.2 ÷ h = 3.02        b  704 ÷ h = 0.704




                             1.1.2   • Provide more exercises regarding division of decimals involving 10,   79
                                   • Beri penekanan bahawa nilai yang melibatkan 0 pada nilai tempat
                             2.2.4  100 and 1 000 by shifting the decimal point.
                             (i), (ii)
                                     mesti ditulis apabila mencerakinkan nombor kepada nilai tempat.
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