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Puzzle of the Day

These puzzles are also printed in Eight days a week, a booklet published by the Association of Teachers of Mathematics.The Association of Teachers of Mathematics

What links the number 7 with the digits 1, 2, 4, 5, 7, 8? (Hint: try using a calculator)

Answer: Divide any whole number (not a multiple of 7) by 7 and these digits come after the decimal point

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