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    D:\Working\TouchPad_Maths\TouchPad_Maths_1\Open_Files\Chap_04\Chap_04
                   \ 21-Nov-2025     Surender Singh Rothan   Proof-7                           Reader’s Sign _______________________ Date __________

                      2.   Cross out ( ) the objects to subtract and find the answer. One has been
                           done for you.

                           a.                               b.                              c.

                                    7 – 2 =  5                      6 – 1 =                     4 – 1 =

                           d.                               e.                              f.

                                    8 – 3 =                          3 – 2 =                     5 – 3 =

                    SubtraCting ZerO (0)

                    Mona has 5 apples. She eats nothing.
                    How many apples does she still have?

                    Clearly, 5.

                    So, 5 – 0 = 5

                    Similarly, we have 6 – 0 = 6, 4 – 0 = 4 and so on.

                    When we subtract zero from a number, the number remains the same.

                    SubtraCting One (1)

                    Rakhi has 4 apples. She eats one apple.

                    How many apples are left?

                    Clearly, 3.

                    So, 4 – 1 = 3

                    Similarly, we have 8 – 1 = 7, 5 – 1 = 4 and so on.

                    When we subtract one from a number, we get the previous number.

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                                                                                           Subtraction up to 20

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