Addition of Decimals | Subtraction of Decimals

Addition and Subtraction of Decimals

In addition of decimals or subtraction of decimals, we should arrange the decimal numbers vertically in such a way that their decimal points be in the same vertical line. After the decimal point for any number, we can put as many zeros as the place value needs. Then the operation of addition or subtraction is done as normally as in the case of whole numbers.

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For example:

Addition (+): 3.12 + 12.923 + 124.5769

Subtraction (–): 15.102 – 9.89

Look at the following workout examples.

Workout Examples

Example 1: Add the following decimal numbers.

a.    2 + 3.25 + 5.32

b.    12.5 + 13.05 + 14.005

c.     3.5 + 12.56 + 123.987

Solution: Here,

Example 2: Subtract the following decimal numbers.

a.    5.62 – 0.999

b.    2 – 1.9

c.     17.32 – 8.92

Solution: Here,

Example 3: Simplify: 12.65 – 3.22 – 1.25 + 5.32

Solution: Here,

                        12.65 – 3.22 – 1.25 + 5.32

                    =  9.43 – 1.25 + 5.32

                    =  8.18 + 5.32

                    =  13.5   

You can comment your questions or problems regarding addition and subtraction of decimals here.