56+12-= 24

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 sixth equation provided is: 56 + 12 - [missing number] = 24.


• To find the missing number, we can rearrange the equation: [missing number] = 56 + 12 - 24.


• Calculation: 56 + 12 = 68. 68 - 24 = 44.

Answer: The missing number is 44. The equation is 56 + 12 - 44 = 24.