Q: What is the negative version of the number 31,221,511?
A: -31,221,511
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:
| 31,221,509 | 31,221,510 | 31,221,512 | 31,221,513 |
| -31,221,509 | -31,221,510 | -31,221,512 | -31,221,513 |