Q: What is the negative version of the number 21,851,720?
A: -21,851,720
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:
| 21,851,718 | 21,851,719 | 21,851,721 | 21,851,722 |
| -21,851,718 | -21,851,719 | -21,851,721 | -21,851,722 |