Q: What is the negative version of the number 644,015,488?
A: -644,015,488
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:
| 644,015,486 | 644,015,487 | 644,015,489 | 644,015,490 |
| -644,015,486 | -644,015,487 | -644,015,489 | -644,015,490 |