Page 239 - SK Year 5 Mathematics DLP
P. 239

10 m
                 Solve the problems below.

                                                                                        parit
                  a   Uncle Naim dug a ditch                                            ditch
                      around his farm as shown
                      in the diagram. Calculate         10 m                            6.7 m
                      the length of the ditch.
                                                                                     2.5 m
                                                                                                   4.8 m
                                                                             3.5 m
                                                                                   10.2 m
                  b   A card with a rectangular
                                                                    
                      surface has been cut as shown
                      in the diagram.
                       i   Find the perimeter of the        40 cm                50 cm
                          card that has not been cut.                     50 cm
                       ii   What is the area of the card
                          that has not been cut?
                                                                           30 cm            30 cm





                  c    The shape of Seng Huat’s
                                                                                                15 m
                      house compound is
                      shown in the diagram. He
                      planted grass in the whole          15 m               15 m     15 m
                      compound. What is the area
                      of the grassy compound?                          25 m




                  d   In a design project, a cuboid was cut                                      5 cm
                      and removed from a cube.
                                                                                              5 cm
                       i  Calculate the volume of the                               10 cm
                          cuboid removed.                         20 cm
                       ii   Is the volume of the remaining
                                           3
                          cube 7 750 cm ? Prove it.                                               20 cm
                                                                               20 cm





                                    • Get pupils to complete the ‟Try These” questions in groups.      231
                             6.5.1  • Next, carry out activities on a station basis. Each group will show the
                                     steps of their calculations.
   234   235   236   237   238   239   240   241   242   243   244