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Question from Susan, a teacher:
11 base 2 × 22 base 3 + 33 base 4 = _________ base 5

How to do it: convert to (say) base 10.

EG: 22 base 3 = 2x3 + 2 = 8.

Then multiply, add, and convert back.

Good Hunting!
-RD

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