Q: What is the negative version of the number 217,555,309?
A: -217,555,309
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:
| 217,555,307 | 217,555,308 | 217,555,310 | 217,555,311 |
| -217,555,307 | -217,555,308 | -217,555,310 | -217,555,311 |