63503

“I have a question about Mathematics.”
“Let me choose from a list of mathematics works.”
“Let me choose from among elementary (i.e., pre-Calculus) items.”
“Just give me a list, in alphabetical order.”

Algebra Equations and Red Herrings

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Algebraic Equations for Beginners

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Birthday Problem

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Casting Out Nines

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Changzhou Homage to Pythagoras

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Chinese Magic Square

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Coin Flipping

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Equal Volumes of Two Stacks of Coins

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Euler’s Theorem on Even Perfect Numbers

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Exact Values in Mathematics versus Engineering

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five large numbers to commit to memory

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Infinitude of the Primes

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Introductory Remarks on Algebra

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Kaprekar’s Constant

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Keys to Challenges

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La Miraklo de Morley

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Locating the Centroid of a Triangle

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Multiplication Table

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Pascal’s triangle and Pascal’s rule

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Pascal’s Triangle: A Scaffolded Approach

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Perfect Numbers

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Prime Factorizations up to 100

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Problem 6 of IMO 1988

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Straight-Line Construction Exercise: Temperature-Scale Conversion

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Sum of the First 100 Numbers

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The 6-People Theorem

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Wedges and Floaters Mathematics Challenge # 1

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Wedges and Floaters Mathematics Challenge # 2

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Wedges and Floaters Mathematics Challenge # 3

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Wedges and Floaters Mathematics Challenge # 5

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Wedges and Floaters Mathematics Challenge # 6

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Wedges and Floaters Mathematics Challenge # 7

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Wedges and Floaters Mathematics Challenge # 9

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Wedges and Floaters Mathematics Challenge # 10

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Wedges and Floaters Mathematics Challenge # 11

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