问题
填空题
按规律填数:
(1)9,16,25,______;
(2)1,5,21,85,______;
(3)2,5,14,41,______;
(4)1,1,2,3,5,8,13,21,______.
答案
(1)6×6=36;
(2)85×4+1=341;
(3)41×3-1=122;
(4)13+21=34;
故答案为:36,341,122,34.
按规律填数:
(1)9,16,25,______;
(2)1,5,21,85,______;
(3)2,5,14,41,______;
(4)1,1,2,3,5,8,13,21,______.
(1)6×6=36;
(2)85×4+1=341;
(3)41×3-1=122;
(4)13+21=34;
故答案为:36,341,122,34.