Basic HTML Version

|  | Table of Contents |  | View Full Version

Page 66 - Math_Genius_V1.0_C1_Flipbook
P. 66

    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 __________

                  ProPertieS oF Subtraction

                  Subtracting Zero (0)

                  Mona has 5 apples. She ate nothing.                                                 Remember
                                                                                                     When we subtract
                  How many apples are still with her?                                               zero from a number,

                  Clearly, 5.                                                                       the number remains
                                                                                                         the same.
                  So,         5 – 0 =  5

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

                  Subtracting one (1)

                  Rakhi has 4 apples. She ate one apple.                                              Remember
                                                                                                    When we subtract 1
                  How many apples are left with her?                                                 from a number the
                                                                                                   answer is the number
                  Clearly, 3.                                                                         that comes just
                                                                                                         before it.
                  So,         4 – 1 =  3

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

                  Subtracting a number from itself                                                    Remember

                  Alka has 3 apples. She ate all three. How                                         When we subtract a
                                                                                                    number from itself,
                  many apples are left with her?                                                     the answer is zero
                                                                                                             (0).
                  Clearly, 0.

                  So,         3 – 3 =  0                                    Think and Answer

                  Similarly, 8 – 8 = 0, 9 – 9 = 0 and so on.              1. How old are you this year?    ..........

                                                                          2. How old were you last year?  ..........
                           Practice time 4g

                  Fill in the blanks.

                  1.  6 – 0 =                        2. 9 – 9 =                         3. 7 – 1 =

                  4.  8 –         = 8                5. 5 –         = 4                 6. 2 –         = 0

                  7.         – 0 = 12                8.        – 1 = 15                 9.        – 18 = 0

                  64                                                                                     Mathematics-1

| 61 62 63 64 65 66 67 68 69 70 71 |