Q: What is the negative version of the number 664,020,663?
A: -664,020,663
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:
| 664,020,661 | 664,020,662 | 664,020,664 | 664,020,665 |
| -664,020,661 | -664,020,662 | -664,020,664 | -664,020,665 |