Q: What is the negative version of the number 644,024,608?
A: -644,024,608
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:
| 644,024,606 | 644,024,607 | 644,024,609 | 644,024,610 |
| -644,024,606 | -644,024,607 | -644,024,609 | -644,024,610 |