Q: What is the negative version of the number 21,540,220?
A: -21,540,220
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:
| 21,540,218 | 21,540,219 | 21,540,221 | 21,540,222 |
| -21,540,218 | -21,540,219 | -21,540,221 | -21,540,222 |