按规侓填数:1/4,4/9,( ),16/25,( ).
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按规侓填数:1/4,4/9,( ),16/25,( ).
三年级按规侓填数2,4,10,28,82(),
1,4,9,16,( ),( ),49.( )
1,4,9,16,( ),36,( )
按规侓填数(1)(),2,3,6,5,10,7,();(2)40,20,(),5;(3) 1,2,4,5,7,8,10,(),().
找规律:1,2,4,4,9,8,16,16,(),()
9x(4/9+1/16)+7/16
(-81)÷4/9×4/9×(-1/16)
简算:4/9*[3/4-(7/16-1/4)]
4/9*{3/4-{7/16-1/4}}
找规律:1,4,9,16,(),()
1 4 9 16 () ()()
1,4,9,16,25,( ),( ),64,81
1,4,9,16,25,36,49,( )
找规律1,4,9,16,
找规律填空;1,4,9,16,[,][,][,][,][,].
1,4,9,16,,,49,找规律
1,4,9,16,25?64,81