Q: What is the negative version of the number 21,515,004?
A: -21,515,004
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:
| 21,515,002 | 21,515,003 | 21,515,005 | 21,515,006 |
| -21,515,002 | -21,515,003 | -21,515,005 | -21,515,006 |