1=7,2=27,3=47,4=67,5=87,6=227,7=?
1=7 2=17 3=37 4=47 5=57 6=67 7=?
1=7,2=37,3=47,4=57,5=67,7=77,8=?
2-3-4=5=6-7-8=9=.=66-67-68=69
找规律的.1=7,2=47,3=247,4=327,5=367,6=457,7=?
7+17+27+37+47+57+67+77+87+97=?为什么呢
观察下列等式2^4=7+9,3^4=25+27+29,4^4=61+63+65+67,5^4=121+123+125+1
数学题 假如1=5 ,2=6 ,3=7 ,4=8 ,5=?
1=5 2=6 3=8 4=7 5=?
1 7=?2=3 =4 =6 =5
6+1=4+[ ]=[ ]+[ ]=[ ] 8-3=6-[ ]=7-[ ]=9-[ ] 5+4=3+[ ]=[ ]+[
若果1=5,2=6,3=7,4=8,5等于几?
1=5,2=10,3=15,4=20,5=?6=?7=?8=?9=?10=?