Q: What is the negative version of the number 640,732,245?
A: -640,732,245
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:
| 640,732,243 | 640,732,244 | 640,732,246 | 640,732,247 |
| -640,732,243 | -640,732,244 | -640,732,246 | -640,732,247 |