Q: What is the negative version of the number 221,642,440?
A: -221,642,440
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:
| 221,642,438 | 221,642,439 | 221,642,441 | 221,642,442 |
| -221,642,438 | -221,642,439 | -221,642,441 | -221,642,442 |