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               \ 17-Nov-2025     Surender Singh Rothan   Proof-7                           Reader’s Sign _______________________ Date __________





              2.  draw lines and add the numbers. one has been done for you.


                    a.            3                     b.            4             c.             7

                         +        9                          +        8                   +        6
                              1   2




                    d.        6                     e.            9                 f.            8
                          +   3                           +        1                     +        5





              3.  write the numbers vertically and add them.

                    a.  4 + 7               b.  8 + 6               c.  5 + 9               d.  7 + 5





                          +                       +                       +                       +







            Addition oF three numberS


            To add three numbers, first add any two numbers and then add the third
            number to that answer.


              4 + 3 + 2 = ?

                                                                                    4

                                                                                    3                      7
                         4      +       3      +     2                     +        2             +        2

                                7              +     2 = 9
                                                                                                           9


              3 + 4 + 2 = ?


                                                                                    3

                                                                                    4                      3
                        3       +       4        +       2                 +        2             +        6

                        3       +              6        = 9
                                                                                                           9





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