Adding decimals is quite similar to adding whole numbers. There are just a few extra steps.
Follow these steps to add two or more decimals:
1: Make sure that the decimals to be added have the same number of digits
After the decimal point. IF NOT, remember to add zeroes to make
them equal.
Example:
Add 0.345 and 2.37.
Notice that 0 . 345 has 3 digits after the decimal point while 2 . 37 has
just 2 digits!
To make the number of digits equal in their decimal parts, just add a zero
at the end of 2.37 2.37 0.
2: Arrange the decimals one below the other (vertical format). Make sure that
the decimal points are aligned or lined up vertically . Aligning the decimal
points vertically is important as it preserves the place-value positions of the digits.
0. 345
2. 37 0
______
______
3: Add the numbers just like you would add whole numbers and in the result, put the decimal point just below the other decimal points.
0. 345
2. 37 0
______
2. 715
______
Tips for Subtracting Decimals
Subtracting decimals is quite similar to subtracting whole numbers. There are just a few extra steps.
Follow these steps to subtract two or more decimals:
1: Make sure that the decimals to be subtracted have the same number of digits after the decimal point. IF NOT, remember to add zeroes to make
them equal.
Example:
Subtract 1.65 from 3.483.
Notice that 3 . 483 has 3 digits after the decimal point while 1 . 65 has
just 2 digits!
To make the number of digits equal in their decimal parts, just add a zero
at the end of 1.65 1.65 0.
2: Arrange the decimals one below the other (vertical format). Make sure that
The decimal points are aligned or lined up vertically . Aligning the decimal
A point vertically is important as it preserves the place-value positions of the digits.
3. 483
1. 65 0
______
_____
3: Subtract the numbers just like you would subtract whole numbers and in the result, put the decimal point just below the other decimal points.
3. 483
1. 65 0
______
1. 833
_____
I'm Chandrajeet, an in-house writer for iCoachMath, the providing of All Free Solved Exampled for Math from K 12. In All USA State Curriculum and also cover all Mathematics Curriculum topics & lessons. I am a regular reader and writer of Education articles.
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