Q: What is the negative version of the number 231,031,209?
A: -231,031,209
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:
| 231,031,207 | 231,031,208 | 231,031,210 | 231,031,211 |
| -231,031,207 | -231,031,208 | -231,031,210 | -231,031,211 |