Q: What is the negative version of the number 21,721,400?
A: -21,721,400
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:
| 21,721,398 | 21,721,399 | 21,721,401 | 21,721,402 |
| -21,721,398 | -21,721,399 | -21,721,401 | -21,721,402 |