Q: What is the negative version of the number 643,551,243?
A: -643,551,243
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:
| 643,551,241 | 643,551,242 | 643,551,244 | 643,551,245 |
| -643,551,241 | -643,551,242 | -643,551,244 | -643,551,245 |