Wii Bowling (Wii Sports) uses standard ten-pin bowling scoring rules. Here's the breakdown:
Frame 1: X (Strike)
Frame 2: 7 / (Spare)
Frame 3: 9 0 (Open)
Score: F1: 10 + 7 + 3 = 20
F2: 10 + 9 = 19
F3: 9 + 0 = 9
Total after 3 frames: 48
Perfect game = 300 (12 consecutive strikes).