What is between 8.1 and 8.2?

The number between 8.1 and 8.2 is 8.15. This number falls exactly midway between 8.1 and 8.2 on the number line. It can be calculated by finding the average of 8.1 and 8.2, which is (8.1 + 8.2) / 2 = 8.15.