Q: What is the negative version of the number 20,515,021?
A: -20,515,021
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:
| 20,515,019 | 20,515,020 | 20,515,022 | 20,515,023 |
| -20,515,019 | -20,515,020 | -20,515,022 | -20,515,023 |