Q: What is the negative version of the number 21,990,099?
A: -21,990,099
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:
| 21,990,097 | 21,990,098 | 21,990,100 | 21,990,101 |
| -21,990,097 | -21,990,098 | -21,990,100 | -21,990,101 |