Q: What is the negative version of the number 21,518,805?
A: -21,518,805
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:
| 21,518,803 | 21,518,804 | 21,518,806 | 21,518,807 |
| -21,518,803 | -21,518,804 | -21,518,806 | -21,518,807 |