What is the next number in this sequence: 1, 1, 2, 3, 5, 8, 13, ...?
21
This is the Fibonacci sequence, where each term after the first two is the sum of the two preceding terms (8 + 13 = 21).
About this riddle
Math riddles hide a calculation inside a short story. Pull out the numbers, work out what is being asked, and watch for a trick such as a unit change.
Difficulty: Easy. More like this: Math riddles with answers or try Target 24 for a different kind of puzzle.
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