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