Q: What is the negative version of the number 644,220,231?
A: -644,220,231
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:
| 644,220,229 | 644,220,230 | 644,220,232 | 644,220,233 |
| -644,220,229 | -644,220,230 | -644,220,232 | -644,220,233 |