Q: What is the negative version of the number 20,151,640?
A: -20,151,640
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:
| 20,151,638 | 20,151,639 | 20,151,641 | 20,151,642 |
| -20,151,638 | -20,151,639 | -20,151,641 | -20,151,642 |