Q: What is the negative version of the number 21,215,099?
A: -21,215,099
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:
| 21,215,097 | 21,215,098 | 21,215,100 | 21,215,101 |
| -21,215,097 | -21,215,098 | -21,215,100 | -21,215,101 |