Q: What is the negative version of the number 31,512,221?
A: -31,512,221
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:
| 31,512,219 | 31,512,220 | 31,512,222 | 31,512,223 |
| -31,512,219 | -31,512,220 | -31,512,222 | -31,512,223 |