Q: What is the negative version of the number 81,878,489?
A: -81,878,489
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:
| 81,878,487 | 81,878,488 | 81,878,490 | 81,878,491 |
| -81,878,487 | -81,878,488 | -81,878,490 | -81,878,491 |