Q: What is the negative version of the number 138,668,009?
A: -138,668,009
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:
| 138,668,007 | 138,668,008 | 138,668,010 | 138,668,011 |
| -138,668,007 | -138,668,008 | -138,668,010 | -138,668,011 |