1,2,3,5,8,13,21.34···第十个数是多少?

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1,2,3,5,8,13,21.34···第十个数是多少?

第十个数字是是55
1+1=2 1+2=3 2+3=5

1,2,3,5,8,13,21.34···第十个数是
89

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