When adding and subtracting decimals add or subtract as normal, but make sure that you keep the decimal points aligned.
For example 3.25 + 1.3 =
3.25
+ 1.30
______
4.55
And to work out 7 - 1.4 we can write it:
7.00
- 1.40
______
5.60
Video to show how to add decimals.
Below is a video to show how you should subtract decimals.
