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    D:\Working\TouchPad_Maths\TouchPad_Maths_1\Open_Files\Chap_04\Chap_04
                   \ 17-Nov-2025     Surender Singh Rothan   Proof-7                           Reader’s Sign _______________________ Date __________

                       Now, answer the following.

                         1.  How many children are left there on a swing when one goes away?

                        2. How many birds are there on the tree when two fly away?

                        3. How many girls are playing when two go away?

                        4. How many men are there on the bench when three go away?

                    SubtrACtion

                    Ranu’s  mother  bought  7 mangoes.  If Ranu took  2  mangoes,  how many
                    mangoes are left?                                                                    ____________

                    Subtraction means taking away. The sign of subtraction is '–'. It is called
                    minus.

                                                                                  There were 7 mangoes.
                                                                                   Ranu took 2 mangoes.
                                                                                    How many are left?

                    We cross out 2 mangoes to find the answer.

                                                                              5 mangoes are left.

                    For subtraction, we first write the bigger number, put the minus sign and
                    then write the smaller number. The above subtraction can be written as

                                                                  7 – 2 = 5

                    We say, seven minus two is equal to five.

                                                                                                                  53
     Mathematics 1                                                                         Subtraction up to 20

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