Q: What is the negative version of the number 215,421,159?
A: -215,421,159
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:
| 215,421,157 | 215,421,158 | 215,421,160 | 215,421,161 |
| -215,421,157 | -215,421,158 | -215,421,160 | -215,421,161 |