Q: What is the negative version of the number 21,135,144?
A: -21,135,144
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:
| 21,135,142 | 21,135,143 | 21,135,145 | 21,135,146 |
| -21,135,142 | -21,135,143 | -21,135,145 | -21,135,146 |