Q: What is the negative version of the number 645,241,720?
A: -645,241,720
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:
| 645,241,718 | 645,241,719 | 645,241,721 | 645,241,722 |
| -645,241,718 | -645,241,719 | -645,241,721 | -645,241,722 |