Q: What is the negative version of the number 721,644,505?
A: -721,644,505
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:
| 721,644,503 | 721,644,504 | 721,644,506 | 721,644,507 |
| -721,644,503 | -721,644,504 | -721,644,506 | -721,644,507 |