1)A game consists of ten frames. Each box on your score- sheet represents one frame.
2)The maximum number of balls rolled in each frame is two.
3)If you get a "strike"—all ten pins with your first ball —score 10 in that box, plus the number of pins you knock down with your next two balls. Thus, the maximum score in each frame is 30—representing three strikes in a row.
4)If you get a "spare"—knock down all ten pins on two rolls—score 10 in that box, plus the number of pins you knock down with your next ball. Thus, the maximum you could get would be 20 in that frame (for a strike following the spare).
Should you knock down five pins, you would get a score of 15 in that box.
5)If you fail to knock down all ten pins with two balls, you simply record the number of pins you toppled.
That's is how to score in ten pin bowling.