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Week 1: Mathematical Thinking Puzzles
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Week 2
Billiard Ball Problem
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Week 3
Gerrymandering Part 2
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Week 4
Puzzles and Problem Solving
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The Mystery of 89
2 digit-numbers!
We showed the property was true for almost all the 2 digit numbers. Check for the remaining numbers and find if they end in 89 or 1.
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Challenge 1
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Challenge 2