2/5,1/5,-8/750,( ).
2/5,1/5,-8/750,( ).
-2/5,1/5,-8/750,(
-2/5,1/5,-8/750下一个数是什么
找规律填数字 -2/5 1/5 -8/750 ( )
数字推理-2/5 ,1/5,-8/750,( )
(1)5 3 (2) 8 7
5/1,5/2,5/3,( / ),5/8,5/13
1 1 2 3 5 8 () () ()
2×(5分之8-3)=?5-3×(5分之8+1)=?
1/2,1/3,2/5,3/8,5/13,8/21(),()找规律
1,2,3,5,8,13,( ); 1,4,9,( ),25( ); 5,8,11
1,1,2,3,5,8,( ),21,( ),55.