找规律(3.8.18.33.53__,__)快!,为什么?i am primary student
问题描述：
找规律(3.8.18.33.53__,__)快!,
为什么?
i am primary student
答
(3.8.18.33.53.78,108)
答
tingjiandan
+5+10+15+20+25+30
and so on primary students' hard job*_*
答
(3.8.18.33.53.78.108)
答
3+5=8
8+10=18
18+15=33
33+20=53
53+25=78
78+30=108
答
相差5 10 15 20
53+25=78
78+30=108
答
78,108