Q: What is the negative version of the number 129,135,909?
A: -129,135,909
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:
| 129,135,907 | 129,135,908 | 129,135,910 | 129,135,911 |
| -129,135,907 | -129,135,908 | -129,135,910 | -129,135,911 |