Answer:
Lets consider a basic problem of addition of three decimal numbers which includes hundredths .
When we add all the three decimal numbers , we regroup all the digits according to their place value (start from left) and then add them.
Now,
Addition of digits on their hundredths place=

Addition of digits on their tenths place =

Addition of digits on unit place =

Arrange the answer according to their corresponding place, we get 18.19
Hence,
