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Mathematics 13 Online
OpenStudy (anonymous):

1 2 3 5 8 13 what is the next number

OpenStudy (anonymous):

I think 18

OpenStudy (radar):

The next number is 21. This is the fibocci series (please excuse the spelling)

OpenStudy (anonymous):

This is Fibonacci's sequence!

OpenStudy (radar):

the sum of the two previous numbers make the next number.

OpenStudy (anonymous):

The proceeding number is 21.

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