题目内容
混合运算.
540÷9÷6
36×7+129
860-13×22
(25+39)×12.
540÷9÷6
36×7+129
860-13×22
(25+39)×12.
(1)540÷9÷6
=60÷6
=10;
(2)36×7+129,
=252+129
=381;
(3)860-13×22,
=860-286
=574;
(4)(25+39)×12
=64×12
=768.
=60÷6
=10;
(2)36×7+129,
=252+129
=381;
(3)860-13×22,
=860-286
=574;
(4)(25+39)×12
=64×12
=768.
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