Decimal addition is like ordinary addition only. To add the given decimal numbers, let us follow the steps.
Step 1: Write the given decimal numbers one below the other so that the decimal points of all the numbers lined up.
Step2:Add zeros for the numbers which are having less digits after the decimal point.
Step3: Now add the numbers starting from the right digit (like ordinary addition). We should not forget to put the decimal point at the appropriate place.
Example for decimal addition:
Add 23.78+1.9
Solution:
Step1: Write the numbers one below the other decimal number.
23 . 78
1 . 9
Step2: Add zeros for the numbers which are having less digits after the decimal point.
23 . 78
1 . 90
Step3: Let us add the numbers like normal addition starting from the right digit.
23 . 78
1 . 90
---------------
24 . 68
---------------
Example:
Add 96.37+5+2.384
Solution:
Step1: Write the given numbers one below the other, so that the decimal point come in a line.
Step2: Add zeros for the numbers which are having less digits after the decimal point.
Step3: Let us add the numbers like normal addition.
We will do some more problems also.
Example:
Add 32.75+76.9+89.32+7
Solution:
32.75
76.90
89.32
7.00
--------
205.97
Example:
Add:98.65, 67.321 and 5.7
Solution:
98.650
67.321
5.700
------------
171.671
Important point:
We have to line up the decimals and add normally.
Practice Problems:
We can do some word problems on addition also in the following links.
Word problem in addition 1 and 2
Practice problems of decimal addition:
Subtracting decimals |
Step1: Write the given decimal numbers one below the other so that the decimal point lined up. Step2: Add zeros to the numbers which are having less digits after the decimal point so that both the numbers are of same length. Step3:Let us do the subtraction normally, care should be taken to put the decimal point in the appropriate place. |