Q: What is the negative version of the number 20,831,509?
A: -20,831,509
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:
| 20,831,507 | 20,831,508 | 20,831,510 | 20,831,511 |
| -20,831,507 | -20,831,508 | -20,831,510 | -20,831,511 |