Q: What is the negative version of the number 21,511,156?
A: -21,511,156
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:
| 21,511,154 | 21,511,155 | 21,511,157 | 21,511,158 |
| -21,511,154 | -21,511,155 | -21,511,157 | -21,511,158 |