Q: What is the negative version of the number 645,561,740?
A: -645,561,740
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:
| 645,561,738 | 645,561,739 | 645,561,741 | 645,561,742 |
| -645,561,738 | -645,561,739 | -645,561,741 | -645,561,742 |