Q: What is the negative version of the number 21,216,505?
A: -21,216,505
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:
| 21,216,503 | 21,216,504 | 21,216,506 | 21,216,507 |
| -21,216,503 | -21,216,504 | -21,216,506 | -21,216,507 |