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    E:\Working\Focus_Learning\Math_Genius_1_(05-10-2023)\Open_Files\04_Chap_4\Chap_4
                   \ 11-Sep-2024  Bharat Arora   Proof-6                                    Reader’s Sign _______________________ Date __________

                                                                          tens Ones
                  3.  There are 16 frogs in the pond. 4 of
                       them hopped away. How many frogs

                       are left in the pond?                            –

                                                                                                              tens Ones
                                                         4.  John had 9 kittens. He gave 7 to

                                                              his neighbours. How many kittens
                                                              does he have now?                             –

                                                                                 tens Ones

                  5.  Sally saw 19 fish. 7 of them swam away.

                       How many fish were left?                               –

                  addition and Subtraction reLationSHiP

                  A number fact is a simple statement made up of
                  three different numbers. For example, 4 + 3 = 7

                  is a number fact.

                  Here, the three numbers used are 4, 3 and 7.

                  Latika: Add 4 and 5 in any order, the answer will
                  be the same.              4 + 5 = 9              same answer

                                    or      5 + 4 = 9

                  Shreyas: We can have two subtraction facts for the above addition facts as

                          9 – 5 = 4                      and 9 – 4 = 5

                  Mayank: It is a beautiful relationship between addition and subtraction.

                                   To each addition fact there are two subtraction facts.

                  66                                                                                     Mathematics-1

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