Q: What is the negative version of the number 21,138,757?
A: -21,138,757
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:
| 21,138,755 | 21,138,756 | 21,138,758 | 21,138,759 |
| -21,138,755 | -21,138,756 | -21,138,758 | -21,138,759 |