Q: What is the negative version of the number 640,445,636?
A: -640,445,636
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:
| 640,445,634 | 640,445,635 | 640,445,637 | 640,445,638 |
| -640,445,634 | -640,445,635 | -640,445,637 | -640,445,638 |