Q: What is the negative version of the number 644,313,211?
A: -644,313,211
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:
| 644,313,209 | 644,313,210 | 644,313,212 | 644,313,213 |
| -644,313,209 | -644,313,210 | -644,313,212 | -644,313,213 |