Q: What is the negative version of the number 21,515,153?
A: -21,515,153
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:
| 21,515,151 | 21,515,152 | 21,515,154 | 21,515,155 |
| -21,515,151 | -21,515,152 | -21,515,154 | -21,515,155 |