Q: What is the negative version of the number 665,640,520?
A: -665,640,520
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:
| 665,640,518 | 665,640,519 | 665,640,521 | 665,640,522 |
| -665,640,518 | -665,640,519 | -665,640,521 | -665,640,522 |