Adding and Subtracting Decimals

Maths

example

Addition of decimal numbers

To add decimal numbers, first make the number of digits on the right of decimal point equal if not and then add them.
For eg:- Add and
Numbers on the right of decimal point are and
So, we make the number of digits equal by adding after the number .
So, we get and
Now, add these numbers without taking decimal point
i.e.
Since, the decimal point is after digits from right
So, we have

example

Subtraction of decimal numbbers

To subtract decimal numbers, first make the number of digits on the right of decimal point equal if not and then subtract them.
For eg:- Subtract from
Numbers on the right of decimal point are and
So, we make the number of digits equal by adding after the number .
So, we get and
Now, subtract these numbers without taking decimal point
i.e.
Since, the decimal point is after digits from right
So, we have