Q: What is the negative version of the number 644,306,542?
A: -644,306,542
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:
| 644,306,540 | 644,306,541 | 644,306,543 | 644,306,544 |
| -644,306,540 | -644,306,541 | -644,306,543 | -644,306,544 |