1、找规律,在()里填数(1)1,1,2,3,5,8,13,(),34,55.(2)3,8,18,33,53,78,(),.

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1、找规律,在()里填数(1)1,1,2,3,5,8,13,(),34,55.(2)3,8,18,33,53,78,(),.1、找规律,在()里填数(1)1,1,2,3,5,8,13,(),34,55

1、找规律,在()里填数(1)1,1,2,3,5,8,13,(),34,55.(2)3,8,18,33,53,78,(),.
1、找规律,在()里填数
(1)1,1,2,3,5,8,13,(),34,55.
(2)3,8,18,33,53,78,(),.

1、找规律,在()里填数(1)1,1,2,3,5,8,13,(),34,55.(2)3,8,18,33,53,78,(),.
(1)1,1,2,3,5,8,13,(21),34,55.规律:等于前面的两个数的和.
(2)3,8,18,33,53,78,(108),.规律:是前面的数加:5,10,15,20,25,30……

(1) 21 前两数相加得后一数
(2)108 第n+1个数是第n个数加上5×n,n从1开始

(1)1,1,2,3,5,8,13,(21),34,55......
(2)3,8,18,33,53,78,(108),..............

21
108!!!!!!!!

1)21
2)108

1.21
2.108

20
108
等差数列

1、找规律,在()里填数
(1)1,1,2,3,5,8,13,(21),34,55......
(2)3,8,18,33,53,78,(108),..............

(1) 21
(2) 108