Q: What is the negative version of the number 21,506,240?
A: -21,506,240
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:
| 21,506,238 | 21,506,239 | 21,506,241 | 21,506,242 |
| -21,506,238 | -21,506,239 | -21,506,241 | -21,506,242 |