Q: What is the negative version of the number 215,542,109?
A: -215,542,109
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:
| 215,542,107 | 215,542,108 | 215,542,110 | 215,542,111 |
| -215,542,107 | -215,542,108 | -215,542,110 | -215,542,111 |