Two numbers that are **opposites** are the same

distance from zero in opposite directions.

In a pair of opposite numbers, one is positive and one is negative.

**Zero is its own opposite** because there is no

distance between zero and itself on a number line.

A number and its opposite are the same distance from zero, but in opposite directions.

The number line shows that 10 and -10 are both 10 units from zero, but in opposite directions.

So, the opposite of 10 is -10.

A number and its opposite are the same distance from zero, but in opposite directions.

The number line shows that $-5\frac{1}{2}$ and $5\frac{1}{2}$ are both $5\frac{1}{2}$ units from zero, but in opposite directions.

So, the opposite of $-5\frac{1}{2}$ is $5\frac{1}{2}$.