Q: What is the negative version of the number 81,840,109?
A: -81,840,109
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:
| 81,840,107 | 81,840,108 | 81,840,110 | 81,840,111 |
| -81,840,107 | -81,840,108 | -81,840,110 | -81,840,111 |