Q: What is the negative version of the number 21,509,396?
A: -21,509,396
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:
| 21,509,394 | 21,509,395 | 21,509,397 | 21,509,398 |
| -21,509,394 | -21,509,395 | -21,509,397 | -21,509,398 |