Q: What is the negative version of the number 644,123,201?
A: -644,123,201
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:
| 644,123,199 | 644,123,200 | 644,123,202 | 644,123,203 |
| -644,123,199 | -644,123,200 | -644,123,202 | -644,123,203 |