Q: What is the negative version of the number 661,447,779?
A: -661,447,779
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:
| 661,447,777 | 661,447,778 | 661,447,780 | 661,447,781 |
| -661,447,777 | -661,447,778 | -661,447,780 | -661,447,781 |