Trying variants of a simple mathematical rule that yields interesting results can lead to additional discoveries and curiosities. The numbers 1, 1, 2, 3, 5, 8, 13, 21, 34, and 55 belong to a famous ...
A Mega Millions drawing turned up 66, 67, 68 and 69. Is that unusual? By Victor Mather A total of 70 balls went into a drum for a lottery drawing. Five were pulled out: 56, 66, 67, 68 and 69. Maybe ...
All of these puzzles relate to adding together consecutive numbers. Mathematicians do not like doing a lot of, tedious adding up, and so are always on the lookout for cunning shortcuts. It might help ...
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