How to subtract numbers in a single cell in Excel Standard subtraction in Excel is relatively simple. Click in an empty cell, type an equal sign and then enter the numbers you want to subtract.

Adding on a number line We can use a number line to add or subtract numbers from 1-10. Let’s try 7 + 2 Start on 7 and jump 2 places further on to finish on 9. 7 + 2 = 9 ...

In this KS1 Maths article you'll learn what number lines are and how to add and subtract using them. We also have KS1 Maths videos, a quiz and lots of examples.