Q: What is the negative version of the number 643,421,231?
A: -643,421,231
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:
| 643,421,229 | 643,421,230 | 643,421,232 | 643,421,233 |
| -643,421,229 | -643,421,230 | -643,421,232 | -643,421,233 |