Q: What is the negative version of the number 21,291,009?
A: -21,291,009
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:
| 21,291,007 | 21,291,008 | 21,291,010 | 21,291,011 |
| -21,291,007 | -21,291,008 | -21,291,010 | -21,291,011 |