Q: What is the negative version of the number 661,055,421?
A: -661,055,421
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:
| 661,055,419 | 661,055,420 | 661,055,422 | 661,055,423 |
| -661,055,419 | -661,055,420 | -661,055,422 | -661,055,423 |