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    E:\Working\Focus_Learning\Math_Genius_2_(09-10-2023)\Open_Files\Chap_04
                   \ 17-Nov-2023  Bharat Arora   Proof-6                                    Reader’s Sign _______________________ Date __________

                  Step 3.  Now, subtract the hundreds.

                             7 – 2 = 5 hundreds                                               Get it right!
                                  H    t   O                                               H T O             H T O

                                       8   13                                                                   7 15
                                  7    9    3                                              4 8 5             4 8 5
                              –   2    4    6                                            –  2 1 9     7    –  2 1 9    3
                                                                                                             2 6 6
                                                                                           2 7 4
                                  5    4    7
                             Thus, 793 – 246 = 547
                  regrouping hundreds

                  We know that 1 hundred = 10 tens
                  So, we borrow 1 hundred from the hundreds place when there are not sufficient

                  tens to subtract at the tens place.
                  Let us understand it through an example.

                  example 2: Find: 428 – 182.
                  Solution:

                   Step 1.  Subtract the ones.                 Step 2.  Subtract the tens.

                              8 – 2 = 6 ones                                  H    t    O

                                   H     t   O                                3   12
                                                                              4    2    8

                                    4    2    8                           –   1    8    2
                                –   1    8    2                                    4    6
                                              6                           Since, 8 < 2, so regroup.

                                                                          4 hundreds + 2 tens
                                                                                   = 3 hundreds + 12 tens

                                                                          12 – 8 = 4 tens
                   Step 3.  Subtract the hundreds.

                              3 – 1 = 2 hundreds                        Think and Answer

                                  H     t   O                        Put the least digit in the blanks so that
                                                                     you need to regroup and subtract them.
                                   3   12                            1.  Tens into ones       2.  Hundreds into tens
                                   4    2    8                             H T O                    H T O
                               –   1    8    2

                                   2    4    6                           –  7 5 6                 –  4 2 8
                                                                                                    2
                                                                                                           5
                                                                           5 2
                             Thus, 428 – 182 = 246

                  Mathematics-2                                                                                          79

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