Telephone Puzzle - Comments and Discussion

Calculator game: begin with your telephone number, then perform arithmetic operations on it and end with the same number; a great algebra lesson plan

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Telephone Puzzle - Comments and Discussion

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Telephone Number Puzzle: A Calculator Game, published in Directory : Mathematics : Fun With Numbers.

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Lawrence K wrote on Nov 17, 2005	quote options
I remember as a kid a bunch of those little calculator games, and every time I saw one, I thought it was like magic. Showing the algebra behind it is like debunking a myth. It can almost be a bit of a let down, but at the same time, there's great satisfaction in knowing.

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