Strikes are 10 pins plus the next two ball counts thrown.
Spares are 10 pins plus the next ball count thrown.
As an example. The first frame had a strike and the second frame had a 9 and a spare and the third frame had a 8 and a 1.
For the first frame, it would be 10+9+1 = 20.
For the second frame it would be 10+8.
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