Q: What is the negative version of the number 21,510,620?
A: -21,510,620
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:
| 21,510,618 | 21,510,619 | 21,510,621 | 21,510,622 |
| -21,510,618 | -21,510,619 | -21,510,621 | -21,510,622 |