Q: What is the negative version of the number 81,155,231?
A: -81,155,231
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:
| 81,155,229 | 81,155,230 | 81,155,232 | 81,155,233 |
| -81,155,229 | -81,155,230 | -81,155,232 | -81,155,233 |