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    E:\Working\Focus_Learning\Math_Genius_2_(09-10-2023)\Open_Files\Chap_02
                   \ 26-Feb-2024  Bharat Arora   Proof-6                                    Reader’s Sign _______________________ Date __________

                  3.  Find the sum of the following. One has been done for you.
                        (a)      t    O          (b)      t    O         (c)       t    O         (d)       t    O

                                 3    2                   6    4                   5    2                   2    6
                             +   1    4               +   1    5               +   3    3               +   4    0

                                 4    6

                  ADDING THREE 2-DIGIT NUMBERS

                  David, Harsh and Vicky participated

                  in an interschool cricket match

                  competition.

                  David, the captain scored 25 runs,

                  Vicky scored 22 runs while Harsh

                  scored 12 runs in the match. What

                  was their total score?

                  David calculates the runs they scored in the match as follows.                                  t    O
                                                                                                                  2    5
                  Step 1.  He writes the numbers one below the other according to the                             2    2
                                                                                                              +   1    2
                             place values of the digits.

                  Step 2.   Then, he adds the ones first.              Step 3.  Next, he adds the tens.

                           t    O                                              t    O
                           2    5                                              2    5
                           2    2                                              2    2
                       +   1    2                                          +   1    2

                                9                                              5    9

                   Thus, they scored 59 runs.

                  Let us see some more examples.
                        (a)      t    O          (b)      t    O         (c)       t    O         (d)       t    O

                                 4    2                   1    5                   3    2                   2    4
                                 1    3                   2    1                   4    1                   1    0
                             +   2    1               +   3    2               +   1    6               +   5    3

                                 7    6                   6    8                   8    9                   8    7

                  38                                                                                     Mathematics-2

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