Q: What is the negative version of the number 21,015,149?
A: -21,015,149
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:
| 21,015,147 | 21,015,148 | 21,015,150 | 21,015,151 |
| -21,015,147 | -21,015,148 | -21,015,150 | -21,015,151 |