What is the following product?

30.10-2116

30.12.-24.46

99.15-21.10

Answer: 2085.9, 5.66, 78.05

Explanation:

30.1 - 2116 = 2085.9

30.12 - 24.46 = 5.66

99.15 - 21.1 = 78.05

I didn't quite understand if you meant there are 3 problems, or that is one big problem, but here are the answers if you meant there are three different problems.