Subtraction Of Decimals

  1.  First convert all the decimals to like decimals.
  2. Write the decimal numbers in column format. Unit place should come in one column, tens place should come in one column, hundred place should come in one column, thousand place should come in one column and so on. Decimal point should come in one column, tenth come in one column, hundredth come in one column and so on.
  3. Do the normal subtraction keeping decimal point between whole and decimal number.

Example 1.

Subtract  5.4 from  8.5.

Solution.

  One DP Tenth
  8 . 5
5 . 4
  3 . 1

So, the answer is 3.1 .

Example 2.

Subtract  10.74 from  125.51.

Solution.

  Hundred Tense One DP Tenth Hundredth
      4   14
4
11
  1 2 5 . 5 1
  1 0 . 7 4
  1 1 4 . 7 7

So, the answer is 114.77 .

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