Q: What is the negative version of the number 21,215,101?
A: -21,215,101
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:
| 21,215,099 | 21,215,100 | 21,215,102 | 21,215,103 |
| -21,215,099 | -21,215,100 | -21,215,102 | -21,215,103 |