Topic outline

  • Subtraction of 3 Digit Numbers (With Borrowing)

    • Subtraction of 3 Digit Numbers (With Borrowing) - Questions Page

      Subtraction of 3 Digit Numbers (With Borrowing)

      Subtract 128 from 645

      Step1. Place the number one below the other.



      Step2. Subtract the ones


      As 5 is smaller than 8, we cannot subtract 8 from 5. So, 1 ten is borrowed from the tens column.

      Now, 1 ten = 10 ones, which means 10 ones + 5 ones = 15 ones.

      We have 15 ones and we can subtract 8 ones from 15 ones.

      15 ones – 8 ones = 7 ones

      7 is written in the ones column of the answer



      Step3. Subtract the tens


      After borrowing 1 ten from tens column, we have 3 tens (4 -1=3 tens) in the tens column.

      Now subtract the tens

      3 tens – 2 tens = 1 tens

      1 is written in the tens column of the answer    


      Step4. Subtract the hundreds


      Now subtract the hundreds

      6 hundreds – 1 hundreds = 5 hundreds

      5 is written in the hundreds column of the answer

       

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