Q: What is the negative version of the number 221,521,240?
A: -221,521,240
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:
| 221,521,238 | 221,521,239 | 221,521,241 | 221,521,242 |
| -221,521,238 | -221,521,239 | -221,521,241 | -221,521,242 |