Page 156 - Math Skill - 2
P. 156

154                                                                                                  Maths


         Add the following.


                   23 g                       34 g                      155 g                      832 g

               + 61 g                     + 13 g                     + 125 g                    + 184 g







         Subtract the following.



                   43 g                       57 kg                     797 g                      356 g

               – 15 g                     – 23 kg                    – 323 g                    – 157 g









        Measuring Capacity


        We use cups and glasses to measure capacity.                                    Absorbing Facts

        But if the glasses used by two people are of                                  Capacity of a container is
                                                                                      the quantity of a liquid it
        different sizes, the measurements of capacity                                 can hold.

        will also be different.

        To measure capacity correctly, we use fixed measures (standard units)

        like millilitres and litres.


        Millilitre

        Small quantities of liquid are measured in millilitres.


        In short, millilitre is written as mL.


        Litre                                                                             The quantity of honey
                                                                                          in spoon is about 4 mL.
        Large quantities of liquid are measured in litres.

        In short, litre is written as L.


            Fact-o-meter                                                              The quantity of

          1000 mL make 1 L.                                                           water in bucket
          So, 1 L = 1000 mL                                                             is about 7 L.
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