Q: What is the negative version of the number 21,456,789?
A: -21,456,789
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:
| 21,456,787 | 21,456,788 | 21,456,790 | 21,456,791 |
| -21,456,787 | -21,456,788 | -21,456,790 | -21,456,791 |