Page 80 - monopoly
P. 80

HOTS  QUESTIONS


            1.     Find the mistake and correct the multiplication 53 × 23.


                                               5      3                        5     3

                                         ×     2      3                 ×      2     3


                                         1     2      9

                                         1     0      6

                                         2     6      5


            2.     Jane starts from her house by car and crosses 11 metro stations to reach
                   her office. The first metro station is near her house and the last metro

                   station is near her office. The distance between any two metro station is 5
                   km. How much distance has she traveled?



                                                   MATHS  LAB


            Objective: To verify the order property of multiplication for

                            Example,                           4 × 5 = 5 × 4 = 20


            Things We need:  4 + 5 = 5 bowls,                         20 + 20 = 40 marbles

            Procedure:

            (i) Take  5  bowls  and  20

                  marbles. Put 4 marbles in

                  each  ball.  We  see  no
                  marble is left. So 5 × 4 = 20


            (ii) Take  4  bowls  and  20

                  marbles. Put 5 marbles in

                  each  bowl.  No  marble  is
                  left. So 4 × 5 = 20.


            (iii) We see 5 × 4 = 4 × 5






                                                               80
            Multiplication
                                                          Mathematics-3
   75   76   77   78   79   80   81   82   83   84   85