In this activity, we will learn how to add three numbers with decimals.

Example

Find the total of:

7582.9 + 838.4 + 7390.8

Answer

The most important step is to line up the decimal points, before carrying out a column addition. Remember to exchange numbers if columns add to 10 or more (shown in red).

So the answer is 15,812.1

Are you ready to have a go yourself?