Q: What is the negative version of the number 644,633,272?
A: -644,633,272
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:
| 644,633,270 | 644,633,271 | 644,633,273 | 644,633,274 |
| -644,633,270 | -644,633,271 | -644,633,273 | -644,633,274 |