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10 cards from this deck
It calculates total ways multiple events can occur.
Multiply the number of ways each event can occur.
3 shirts and 2 hats yield 6 combinations.
m × n, where m and n are ways each event can occur.
24 meal combinations from 3 × 4 × 2.
It doesn't apply when events overlap.
1,757,600 possible plates calculated as 26^3 × 10^2.
Permutations: order matters; combinations: order doesn't.
It expands on the fundamental counting principle.
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