Addition of Decimals


 
 
Concept Explanation
 

Addition of Decimals

Addition of decimal: To add the decimals, follow these steps:

  • Step 1:  Line up the numbers vertically so that the decimal points all lie on a vertical line.
  • Step 2:  Add extra zeros to the right of the number so that each number has the same number of digits to the right of the decimal place.
  • Step 3:  Add the numbers as you would do in the case of whole numbers.  Place the decimal point of the result in line with the other decimal points.
  • Illustration: Add the given decimals: 93.59 + 4.7

    Solution

    Step 1:   93.59    Notice the decimal points in line.               4.7 

    Step 2:      93.59                         4.70 

            We added this 0 so both numbers have 2 digits to the right of the decimal point.

               small  93.59 underline{+4.70}98.29

    Example: Add 1.452 to 1.3

    Solution: Make the decimals as like decimals.1.3 becomes 1.300.

    small 1.452 underline{1.300} 2.752

     
    Sample Questions
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    Question : 1

    frac {8}{10}+0+frac {7}{1000}=    ________  .

    Right Option : C
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    Explanation
    Question : 2

    A shopkeeper sold 12.750 kg of sugar on a day. On the next day he sold 38.250 kg of sugar. On the third day he sold 50,500 kg of sugar. How much of sugar in all did the shopkeeper sell?

    Right Option : B
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    Explanation
    Question : 3

    Find the value of

    4+3+3+frac{2}{10}+frac{5}{100}

    Right Option : C
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    Explanation
     
     


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