Q: What is the negative version of the number 661,131,611?
A: -661,131,611
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:
| 661,131,609 | 661,131,610 | 661,131,612 | 661,131,613 |
| -661,131,609 | -661,131,610 | -661,131,612 | -661,131,613 |