Q: What is the negative version of the number 18,221,840?
A: -18,221,840
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:
| 18,221,838 | 18,221,839 | 18,221,841 | 18,221,842 |
| -18,221,838 | -18,221,839 | -18,221,841 | -18,221,842 |