Q: What is the negative version of the number 640,215,623?
A: -640,215,623
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:
| 640,215,621 | 640,215,622 | 640,215,624 | 640,215,625 |
| -640,215,621 | -640,215,622 | -640,215,624 | -640,215,625 |