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Page 102 - Math Genius C2
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                   \ 26-Sep-2025  Bharat Arora   Proof-10                                   Reader’s Sign _______________________ Date __________

                  To find the double, we add the number twice or multiply 2 by the number.
                  examples:                                                                   Math Insight

                  (a)  Double of 3 = 3 + 3 = 6 or 2 × 3 = 6                         Any number multiplied by:

                  (b)  Double of 4 = 4 + 4 = 8 or 2 × 4 = 8                         l   0 is equal to 0.
                                                                                    l   1 is equal to the number itself.
                  (c)  Double of 5 = 5 + 5 = 10 or 2 × 5 = 10                       l   2 is equal to double the number.

                       activity
                                                                                                               Experiential Learning
                    Make a 3 × 4 grid for playing ‘Bingo’.

                    Fill the boxes of the grid with any 12 numbers from the
                    given chart.                                                       ×    1    2    3    4    5    6
                    Numbers can be repeated.                                           1    1    2    3    4    5    6
                    Let one child throw a pair of dice and say the                     2    2    4    6    8    10 12
                    product of the number of dots appearing                            3    3    6    9    12 15 18
                    on the dice. Other children will cross the                         4    4    8    12 16 20 24
                    number on their grid. Continue this till a                         5    5    10 15 20 25 30
                    child crosses all the numbers.                                     6    6    12 18 24 30 36
                    The child who crosses all the numbers will say aloud Bingo!

                           Practice Time 5C

                  1.  fill in the boxes.

                       (a)  1 × 2 =                     (b)  1 × 5 =                   (c)  5 × 1 =

                       (d)  1 × 8 =                     (e)  9 × 0 =                   (f)  7 × 1 =

                       (g)  1 × 1 =                     (h)  0 × 3 =                   (i)  3 × 2 =

                  2.  fill the missing numbers.

                       (a)  3 × 4 = 4 ×                 (b)  5 × 6 = 6 ×               (c)  2 × 5 = 5 ×

                       (d)  4 × 5 = 5 ×                 (e)  3 × 7 =          × 3      (f)  2 × 6 =           × 2

                       (g)  2 × 8 =           × 2       (h)  7 × 4 =          × 7      (i)          × 5 = 5 × 8
                  3.  find the double of the following. One has been done for you.

                       (a)  Double of 7 = 2 × 7      =  14               (b)  Double of 6 = 2 × 6 =

                       (c)  Double of 8 = 2 × 8      =                   (d)  Double of 9 = 2 × 9 =

                       (e)  Double of 10 = 2 × 10 =                      (f)  Double of 1 = 2 × 1 =

                 100                                                                                    Mathematics-2

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