Q: What is the negative version of the number 31,220,509?
A: -31,220,509
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:
| 31,220,507 | 31,220,508 | 31,220,510 | 31,220,511 |
| -31,220,507 | -31,220,508 | -31,220,510 | -31,220,511 |