Exercise 42 Page 250

Numbers that are located on opposite sides of 0 and are the same distance from 0 on a number line are called opposite numbers. We are given an integer and want to write its opposite. Let's plot this number on a number line.

The distance from the point to 0 is 7 units. Since the point is to the left of 0, it is -7. We will measure the same distance on the opposite side of the number line to find the opposite of -7. Let's do it!

The opposite number is 7. Opposite of-7: & 7