Q: What is the negative version of the number 21,408,220?
A: -21,408,220
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:
| 21,408,218 | 21,408,219 | 21,408,221 | 21,408,222 |
| -21,408,218 | -21,408,219 | -21,408,221 | -21,408,222 |