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12 cards from this deck
Moving binary digits left or right
Quick way to multiply/divide by powers of 2
Multiplies the number by 2
Multiply by 2n2^n2n
Divides the number by 2
Divide by 2n2^n2n
21=22^1 = 221=2
22=42^2 = 422=4
Lose remainders when digits fall off the right end
Extremely fast operations for computers
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