Q: What is the negative version of the number 21,509,995?
A: -21,509,995
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:
| 21,509,993 | 21,509,994 | 21,509,996 | 21,509,997 |
| -21,509,993 | -21,509,994 | -21,509,996 | -21,509,997 |