Q: What is the negative version of the number 642,125,421?
A: -642,125,421
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:
| 642,125,419 | 642,125,420 | 642,125,422 | 642,125,423 |
| -642,125,419 | -642,125,420 | -642,125,422 | -642,125,423 |