Q: What is the negative version of the number 221,455,640?
A: -221,455,640
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:
| 221,455,638 | 221,455,639 | 221,455,641 | 221,455,642 |
| -221,455,638 | -221,455,639 | -221,455,641 | -221,455,642 |