Real number that is less than or equal to zero.

The only number that is both positive and negative is the number 0.

The opposite of a positive number is a negative number with the same absolute value and vice versa.

The opposite of a positive number is a negative number with the same absolute value and vice versa.

- The opposite of –5 is 5.
- The opposite of 7 is –7.

### Examples

The numbers –5, –7, –\(\frac{1}{2}\), –\(\sqrt{6}\), –2.8 and –13π are negative numbers.