Q: What is the negative version of the number 21,520,140?
A: -21,520,140
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:
| 21,520,138 | 21,520,139 | 21,520,141 | 21,520,142 |
| -21,520,138 | -21,520,139 | -21,520,141 | -21,520,142 |