Q: What is the negative version of the number 21,142,645?
A: -21,142,645
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:
| 21,142,643 | 21,142,644 | 21,142,646 | 21,142,647 |
| -21,142,643 | -21,142,644 | -21,142,646 | -21,142,647 |