Q: What is the negative version of the number 642,221,634?
A: -642,221,634
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:
| 642,221,632 | 642,221,633 | 642,221,635 | 642,221,636 |
| -642,221,632 | -642,221,633 | -642,221,635 | -642,221,636 |