Q: What is the negative version of the number 21,729,138?
A: -21,729,138
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:
| 21,729,136 | 21,729,137 | 21,729,139 | 21,729,140 |
| -21,729,136 | -21,729,137 | -21,729,139 | -21,729,140 |