Page 72 - Revised Maths Wisdom Class - 2
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70                                                                                                 MATHS




              Subtract the following.



              H  T  O               H  T  O                H  T  O               H  T  O               H  T  O
             8  5  6               6  3  4                4  4  3               3  9  2               8  2  2

            –  6  1  1            –  5  2  1             –  3  1  2            –  2  3  1            –  5  1  1







              H  T  O               H  T  O                H  T  O               H  T  O               H  T  O

             5  8  6               4  4  2                7  4  4               7  8  3               5  3  6
            –  4  7  5            –  2  1  1             –  2  1  2            –  2  6  0            –  3  2  3









        Subtraction of 3-digit Numbers with Borrowing

        Borrowing from Hundreds


        Let us subtract 172 from 324.

        Step 1:        Subtract the ones digits.

                       4 – 2 = 2 ones. Write 2 in ones column.

        Step 2:          Check the tens digits.

                         2 < 7, so we borrow 1 hundred from 3 hundreds.

                       1 hundred = 10 tens.
                        10 tens + 2 tens = 12 tens.

        Step 3:          Change the hundreds digit from 3 to 2.                                    H  T  O

        Step 4:          Now, subtract the tens digits.                                           2   12

                       12 – 7 = 5                                                                 3  2  4

                       Write 5 in tens column.                                                  – 1  7  2

        Step 5:          Now, subtract the hundreds digits.                                        1  5  2

                       2 – 1 = 1
                       Write 1 in hundreds column.
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