Q: What is the negative version of the number 131,638,509?
A: -131,638,509
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:
| 131,638,507 | 131,638,508 | 131,638,510 | 131,638,511 |
| -131,638,507 | -131,638,508 | -131,638,510 | -131,638,511 |