Question

Which expression represents the distance between 2.3 and −4.8−4.8 on the number line?

|2.3−4.8|2.3-4.8

|−4.8−2.3|-4.8-2.3

|−4.8+2.3|-4.8+2.3

|4.8−2.3|

Answer 1

@mathmale

Answer 2

Why not actually sketch a number line and plot 2.3 and -4.8 on it? Just seeing how these 2 points are situated may be enough to help you figure out the distance between these 2 points. We can also use subtraction to answer this question.