Q: What is the negative version of the number 21,661,240?
A: -21,661,240
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:
| 21,661,238 | 21,661,239 | 21,661,241 | 21,661,242 |
| -21,661,238 | -21,661,239 | -21,661,241 | -21,661,242 |