Q: What is the negative version of the number 644,022,500?
A: -644,022,500
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:
| 644,022,498 | 644,022,499 | 644,022,501 | 644,022,502 |
| -644,022,498 | -644,022,499 | -644,022,501 | -644,022,502 |