Q: What is the negative version of the number 21,540,540?
A: -21,540,540
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:
| 21,540,538 | 21,540,539 | 21,540,541 | 21,540,542 |
| -21,540,538 | -21,540,539 | -21,540,541 | -21,540,542 |