Q: What is the negative version of the number 421,515,140?
A: -421,515,140
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:
| 421,515,138 | 421,515,139 | 421,515,141 | 421,515,142 |
| -421,515,138 | -421,515,139 | -421,515,141 | -421,515,142 |