Q: What is the negative version of the number 820,507,515?
A: -820,507,515
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:
| 820,507,513 | 820,507,514 | 820,507,516 | 820,507,517 |
| -820,507,513 | -820,507,514 | -820,507,516 | -820,507,517 |