题目内容

57+19-20=36÷4×9=0×27=
160÷4+10=(25-5)÷4=0÷11+11=
115-15÷5=30×(84÷4)=36-0÷36=

(1)57+19-20,
=76-20,
=56;

(2)36÷4×9,
=9×9,
=81;

(3)0×27=0;

(4)160÷4+10,
=40+10,
=50;

(5)(25-5)÷4,
=20÷4,
=5;

(6)0÷11+11,
=0+11,
=11;

(7)115-15÷5,
=115-3,
=112;

(8)30×(84÷4),
=30×21,
=630;

(9)36-0÷36,
=36-0,
=36.
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