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    E:\Working\Focus_Learning\Math_Genius_3_(11-09-2024)\Open_Files\CHAP_03
                 \ 12-Sep-2024  Surender Prajapati   Proof-5                                  Reader’s Sign _______________________ Date __________

                  Example 5: Subtract 8999 from 9762.
                                                                              Quick Check
                  Solution:        th H     t    O                          Show  regrouping  of        th H      t   O

                                       16   15                              thousands, hundreds,
                                   8    6   5   12                          tens and ones in the
                                   9    7   6    2                          blank circles.               6    2   3    1
                                – 8     9   9    9                                                    – 2     4   4    8
                                   0    7   6    3                                                       3    7   8    3
                         Thus, the difference of 9762 and 8999 is 763.

                           Practice Time 3B

                  1.  Subtract the following.

                       (a)     th H     t   O   (b)    th H     t   O    (c)    th H     t   O    (d)    th H     t   O

                                6   9   9   5          8    4   5   6            9   9   4   9
                                                                                                          4   6   7   5
                            – 4     8   9   4       – 8     4   5   5        – 7     8   3   1         – 3    8   4   6

                       (e)    th H     t   O    (f)    th H     t   O    (g)    th H     t   O    (h)    th H     t   O

                               6   4   0   0           4    3   4   4            8   6   5   2            7   0   5   4
                            – 3    9   9   9        – 2     6   5   5        – 5     9   7   6         – 3    9   6   7

                  2.  Write in the columns and subtract.

                       (a)  5667 – 3994         (b)  8777 – 4997         (c)  9606 – 7397        (d)  7237 – 2655

                       (e)  8000 – 968          (f)  7467 – 5183         (g)  4007 – 1221        (h)  6549 – 3999

                  Subtraction ProPertieS

                  Subtracting 0

                  When zero is subtracted from any number, the difference is the number itself.
                  Examples:  (a) 45 – 0 = 45          (b) 125 – 0 = 125  (c) 4326 – 0 = 4326

                  Subtracting 1

                  When 1 is subtracted from any (non-zero) number, the difference is the number just

                  before (predecessor) of the given number.
                  Examples:  (a) 71 – 1 = 70             (b) 128 – 1 = 127            (c) 1246 – 1 = 1245

                  Mathematics-3                                                                                          57

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