问题
填空题
按规律填数:
(1)5,20,45,80,125,______,245,______;
(2)1,4,9,16,______,______.
答案
(1)125+55=180;
245+75=320;
(2)5×5=25;
6×6=36;
故答案为:180,320;25,36.
按规律填数:
(1)5,20,45,80,125,______,245,______;
(2)1,4,9,16,______,______.
(1)125+55=180;
245+75=320;
(2)5×5=25;
6×6=36;
故答案为:180,320;25,36.