Q: What is the negative version of the number 21,131,520?
A: -21,131,520
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:
| 21,131,518 | 21,131,519 | 21,131,521 | 21,131,522 |
| -21,131,518 | -21,131,519 | -21,131,521 | -21,131,522 |