Here we are looking for the missing number. It is up to you to determine what problem is occuring. The first two wheels in the first card give the clues.
Clue card. Square the top number, then add the bottom right. ?=10
Top left: 143, Bottom right: 71
Top left: 134, Bottom right: 67
Top left: 43, Bottom right: 59
Top left: 9, Bottom right: 49
Top left: 217, Bottom right: 5