Q: What is the negative version of the number 21,000,018?
A: -21,000,018
Negative numbers are usually written with - in front of them. They represent a number that is less than zero.
Here are more examples of negative numbers in sequence:
| 21,000,016 | 21,000,017 | 21,000,019 | 21,000,020 |
| -21,000,016 | -21,000,017 | -21,000,019 | -21,000,020 |