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Maths Enrichment
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Adding Ones
Calculating Pi
Clock Arithmetic
Clock Arithmetic Problems
Difference of Squares
Euler Characteristic for Graphs
Hand Shakes
Happy Numbers
Kaprekar's Constant
Mondrian Art Puzzle
Trees
Fifth Grade
Casting Out Nines
Coin Game (Nim variant)
Farey Sequence
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Maths Enrichment
Calculating Pi
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