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    E:\Working\Focus_Learning\Math_Genius_3_(11-09-2024)\Open_Files\CHAP_02
                 \ 12-Sep-2024               Surender Prajapati   Proof-4                     Reader’s Sign _______________________ Date __________

                  Adding 100

                  When we add '100' to a number, the value of the digit at the hundreds place increases by
                  1 and tens and ones digits remain the same.

                  examples: (a) 643 + 100 = 743              (b) 1785 + 100 = 1885
                  Adding 1000

                  When we add '1000' to a number, the value of the digit at the thousands place increases

                  by 1 and hundreds, tens and ones digits remain the same.

                  examples: (a) 6523 + 1000 = 7523   (b) 7092 + 1000 = 8092

                                                          Remember
                      In case the digit at the tens, hundreds or thousands place is 9, while adding 10, 100 or 1000
                      respectively, the digit at the next highest place also changes.
                      For example, (i) 91 + 10 = 101      (ii) 8965 + 100 = 9065

                           practice time 2F

                  1.  Fill in the blanks using the properties of addition.

                       (a)  124 + 0 = ______            (b)  _____ + 0 = 675             (c)  8926 + ____ = 8926
                       (d)  4678 + 1 = ______           (e)  3564 + _____ = 3565          (f)  _______+ 1 = 4576

                  2.  Find the missing numbers.

                       (a)  74 + ____ = 84              (b)  ____ + 55 = 65              (c)  4362 + ____ = 4462

                       (d)  ____ + 5346 = 5446          (e)  3040 + ____ = 3140           (f)  ____ + 1736 = 2736

                  3.  Find the sum of the following using the properties of addition.
                       (a)  542 + 10                    (b)  789 + 100                   (c)  10 + 7235

                       (d)  4178 + 100                  (e)  6965 + 100                   (f)  6743 + 100

                       (g)  100 + 3144                  (h)  612 + 1000                   (i)  6283 + 1000

                  4.  Add the following numbers. then, change the order of the addends to verify the
                       order property of the addition.

                       (a)  635 + 298                                    (b)  563 + 375

                                H     t    O         H     t     O               H     t     O         H     t    O

                            +                    +                           +                     +

                  42                                                                                    Mathematics-3

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