Q: What is the negative version of the number 645,557,761?
A: -645,557,761
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:
| 645,557,759 | 645,557,760 | 645,557,762 | 645,557,763 |
| -645,557,759 | -645,557,760 | -645,557,762 | -645,557,763 |