Q: What is the negative version of the number 31,621,221?
A: -31,621,221
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:
| 31,621,219 | 31,621,220 | 31,621,222 | 31,621,223 |
| -31,621,219 | -31,621,220 | -31,621,222 | -31,621,223 |