Question

Where is the answer to the expression 5 − 9 located on a horizontal number line?

9 units to the left of 5
9 units to the right of 5
4 units to the right of 5
4 units to the left of 5

Answer 1

The answer is "9 units to the left of 5"

Answer 2

9 units to the left of 5 as it means 5-9 which equals -4. This means that you have to jump backwards from 5, 9 times, leaving you at -4.