Q: What is the negative version of the number 31,681,209?
A: -31,681,209
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:
| 31,681,207 | 31,681,208 | 31,681,210 | 31,681,211 |
| -31,681,207 | -31,681,208 | -31,681,210 | -31,681,211 |