How to Add on a Number Line
Adding on a number line is easy.Question
Use a number line to find 4 + 3.Step-by-Step:
1
Find 4 on the number line.
4 + 3
2
Move 3 to the right along the number line.
4 + 3
3
Read off the number you have reached.
Answer:
4 + 3 = 7Top Tip
To Add, Go Right
Adding means going right on a number line.
Note
The Order of Adding Doesn't Matter
In our example, we have found 4 + 3.
But the order in which we add the numbers doesn't matter... we can swap the numbers around:
4 + 3 = 3 + 4
This is the commutative property of addition: you can change the order of the numbers around the sign and still get the same answer.
This page was written by Stephen Clarke.
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