Q: What is the negative version of the number 21,666,656?
A: -21,666,656
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:
| 21,666,654 | 21,666,655 | 21,666,657 | 21,666,658 |
| -21,666,654 | -21,666,655 | -21,666,657 | -21,666,658 |