Q: What is the negative version of the number 721,565,645?
A: -721,565,645
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:
| 721,565,643 | 721,565,644 | 721,565,646 | 721,565,647 |
| -721,565,643 | -721,565,644 | -721,565,646 | -721,565,647 |