Q: What is the negative version of the number 31,691,140?
A: -31,691,140
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:
| 31,691,138 | 31,691,139 | 31,691,141 | 31,691,142 |
| -31,691,138 | -31,691,139 | -31,691,141 | -31,691,142 |