Q: What is the negative version of the number 21,720,222?
A: -21,720,222
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:
| 21,720,220 | 21,720,221 | 21,720,223 | 21,720,224 |
| -21,720,220 | -21,720,221 | -21,720,223 | -21,720,224 |