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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




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