7:35

Coolest Math Challenge

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Best Graphing Game Ever

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Imaginary numbers aren't imaginary

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0 mph to 60 mph in 2 seconds, what's the acceleration? (the answer is NOT 30)

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The Intuitive Concept of a Derivative

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Catriona Agg 5 Circles 1 Square

7:22

This Geometry Challenge Took a While

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The Rubik's Cube is a Calculator