Q: What is the negative version of the number 21,516,840?
A: -21,516,840
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:
| 21,516,838 | 21,516,839 | 21,516,841 | 21,516,842 |
| -21,516,838 | -21,516,839 | -21,516,841 | -21,516,842 |