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    E:\Working\Brother_Education\Preparatory_Stage_Maths-3_(11-09-2024)\Open_Files\CHAP_09
                 \ 11-Sep-2024                      Sonia Suyal   Proof-1                     Reader’s Sign _______________________ Date __________

                           Think and Answer
                        Sania’s family wants to buy goods from the shopping
                        mall  using the  shortest route. The  distance
                        between two locations next  to each  other is
                        marked on the given picture.
                         1.   Which route should the car take - Home to
                            shopping mall via temple or home to shopping
                            mall via bank? ______________________

                         2.   How much  more distance will the car
                            cover  if  Sania  takes  the  longer  route?
                            ______________________

                  subtraCtion of Weight

                  Example 1: Subtract:

                                 (a) 350 g from 900 g

                                 (b) 17 kg from 30 kg

                  Solution:      (a)                                     (b)
                                          8 10                                    2 10

                                          9 0 0 g                                 3 0 kg
                                       – 3 5 0 g                               – 1 7 kg
                                          5 5 0 g                                 1 3 kg

                  Example 2: Subtract 14 kg 569 g from 21 kg 664 g.

                  Solution:   Arrange the given measures in the two columns of ‘kg’ and ‘g’ and subtract
                                 them as ordinary numbers.

                                 Step 1: Subtract grams (g).                                            kg          g

                                           664 g – 569 g = 95 g                                                    15
                                                                                                      1 11      5   5 14
                                           Write 95 under the g column.                               2 1       6 6 4

                                 Step 2: Subtract kilograms (kg).                                  – 1 4        5 6 9
                                                                                                          7     0 9 5
                                           21 kg – 14 kg = 7 kg

                                           Write 7 under the kg column.

                                 Thus, 21 kg 664 g – 14 kg 569 g = 7 kg 95 g

                 158                                                                                    Mathematics-3

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