Q: What is the negative version of the number 644,665,326?
A: -644,665,326
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:
| 644,665,324 | 644,665,325 | 644,665,327 | 644,665,328 |
| -644,665,324 | -644,665,325 | -644,665,327 | -644,665,328 |