Q: What is the negative version of the number 21,516,990?
A: -21,516,990
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:
| 21,516,988 | 21,516,989 | 21,516,991 | 21,516,992 |
| -21,516,988 | -21,516,989 | -21,516,991 | -21,516,992 |