Page 154 - Math Skill - 2
P. 154

152                                                                                                  Maths


         Add the following.


                   36 m                       97 cm                     525 cm                     170 cm

               + 13 m                     + 24 cm                    + 273 cm                   + 403 cm








         Subtract the following.



                   80 m                       60 cm                     375 cm                     456 cm

               – 17 m                     – 44 cm                    – 116 cm                   – 271 cm









        Measuring Weight


        To measure weight correctly, we use fixed measures (standard units) like
        grams and kilograms. We use weighing scales or weighing machines to

        weigh objects.




                                                 Absorbing Facts                  Fact-o-meter

                                               1000 g make 1 kg                 Weight tells us how heavy
                                               So, 1 kg = 1000 g.               or light an object is.




        Gram

        Lighter objects are measured in grams.

        In short, gram is written as g.
                                                                                               The weight of an
                                                                                             apple is about 200 g.



                                              Kilogram


                                              Heavier  objects  are  measured  in  kilograms.
         The weight of watermelon
                is about 2 kg.                In short, kilogram is written as kg.
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