Q: What is the negative version of the number 21,512,131?
A: -21,512,131
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:
| 21,512,129 | 21,512,130 | 21,512,132 | 21,512,133 |
| -21,512,129 | -21,512,130 | -21,512,132 | -21,512,133 |