Q: What is the negative version of the number 644,430,749?
A: -644,430,749
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:
| 644,430,747 | 644,430,748 | 644,430,750 | 644,430,751 |
| -644,430,747 | -644,430,748 | -644,430,750 | -644,430,751 |