Q: What is the negative version of the number 20,400,209?
A: -20,400,209
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:
| 20,400,207 | 20,400,208 | 20,400,210 | 20,400,211 |
| -20,400,207 | -20,400,208 | -20,400,210 | -20,400,211 |