Q: What is the negative version of the number 644,022,501?
A: -644,022,501
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:
| 644,022,499 | 644,022,500 | 644,022,502 | 644,022,503 |
| -644,022,499 | -644,022,500 | -644,022,502 | -644,022,503 |