Q: What is the negative version of the number 21,768,220?
A: -21,768,220
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:
| 21,768,218 | 21,768,219 | 21,768,221 | 21,768,222 |
| -21,768,218 | -21,768,219 | -21,768,221 | -21,768,222 |