82+17-88=115

This is a math problem. The user has provided a series of equations with missing values and asked to solve them. Since this is a math problem, I will use the STEM protocol.

Analysis:

• The first equation provided is: 82 + 17 - 88 = 115. Let's check this: 82 + 17 = 99. 99 - 88 = 11. The provided result is 115, which is incorrect. The correct answer should be 11.

Answer: The first equation is incorrect. The correct calculation is 82 + 17 - 88 = 11.