Q: What is the negative version of the number 21,210,210?
A: -21,210,210
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:
| 21,210,208 | 21,210,209 | 21,210,211 | 21,210,212 |
| -21,210,208 | -21,210,209 | -21,210,211 | -21,210,212 |