Q: What is the negative version of the number 20,421,518?
A: -20,421,518
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:
| 20,421,516 | 20,421,517 | 20,421,519 | 20,421,520 |
| -20,421,516 | -20,421,517 | -20,421,519 | -20,421,520 |