Q: What is the negative version of the number 21,515,665?
A: -21,515,665
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:
| 21,515,663 | 21,515,664 | 21,515,666 | 21,515,667 |
| -21,515,663 | -21,515,664 | -21,515,666 | -21,515,667 |