Q: What is the negative version of the number 90,721,391?
A: -90,721,391
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:
| 90,721,389 | 90,721,390 | 90,721,392 | 90,721,393 |
| -90,721,389 | -90,721,390 | -90,721,392 | -90,721,393 |