Q: What is the negative version of the number 664,015,211?
A: -664,015,211
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:
| 664,015,209 | 664,015,210 | 664,015,212 | 664,015,213 |
| -664,015,209 | -664,015,210 | -664,015,212 | -664,015,213 |