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A strike is worth 10 points plus the number of pins knocked down by the player during their next two tries. If players do not score a strike but knock down all remaining on their second try, the frame is scored as a spare. A spare is worth 10 points plus the number of pins knocked down on the next try.
Ten-pin bowling scores can be as low as 0 or as high as 300. Players get 10 chances to knock down all of the pins; each chance is called a frame. In each frame, players can try to knock down all of the pins up to two times. Players who do not knock down all of the pins after two tries get up to 9 points for the frame. One point is given for every pin knocked down, if any are knocked down at all.