Q: What is the negative version of the number 644,007,508?
A: -644,007,508
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:
| 644,007,506 | 644,007,507 | 644,007,509 | 644,007,510 |
| -644,007,506 | -644,007,507 | -644,007,509 | -644,007,510 |