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    D:\Working\TouchPad_Maths\TouchPad_Maths_1\Open_Files\Chap_03\Chap_03
                   \ 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

                       44        Mathematics 1

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