Q: What is the negative version of the number 21,512,451?
A: -21,512,451
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:
| 21,512,449 | 21,512,450 | 21,512,452 | 21,512,453 |
| -21,512,449 | -21,512,450 | -21,512,452 | -21,512,453 |