Q: What is the negative version of the number 644,613,442?
A: -644,613,442
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:
| 644,613,440 | 644,613,441 | 644,613,443 | 644,613,444 |
| -644,613,440 | -644,613,441 | -644,613,443 | -644,613,444 |