A problem-solving strategy that often makes tedious computation superfluous, by thinking from the end result. Also known as "salmon strategy."

In a knock-out tennis tournament with 32 players, how many matches must be played before there is a winner? Using the "work backwards" strategy, since there are 32 players and only one winner, 31 of them must have lost their games, so 31 matches were played.

by MathPlus July 21, 2016

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