Q: What is the negative version of the number 645,220,504?
A: -645,220,504
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:
| 645,220,502 | 645,220,503 | 645,220,505 | 645,220,506 |
| -645,220,502 | -645,220,503 | -645,220,505 | -645,220,506 |