called "frames."

In each frame, a player makes two attempts to

knock down all 10 pins.

A "strike" is credited if all pins are knocked

down on the first shot, and 10 points are added

plus the score of that player's next two rolls.

If the player knocks down all 10 pins with two

shots, a "spare" is credited, with 10 points

added to the first ball rolled in the next

frame.

The highest score possible is 300.