Q: What is the negative version of the number 21,521,830?
A: -21,521,830
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:
| 21,521,828 | 21,521,829 | 21,521,831 | 21,521,832 |
| -21,521,828 | -21,521,829 | -21,521,831 | -21,521,832 |