What is the opposite of the number - 2.5? How does the position of - 2.5 compare to its opposite on the number line?

-2.5 and 2.5 compare to eachother on the number line because they are the exact same distance away from 0.

Step-by-step explanation:

0 is in the very middle and to get - 2.5 you go to the left 2.5 paces but to get to + 2.5 you go to the right 2.5 paces. Either way you have to move Exactly 2.5 paces either to the left or right depending on if you want a positive or negative.