Q: What is the negative version of the number 20,505,221?
A: -20,505,221
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:
| 20,505,219 | 20,505,220 | 20,505,222 | 20,505,223 |
| -20,505,219 | -20,505,220 | -20,505,222 | -20,505,223 |