问题 解答题
脱式计算
420÷28×47719-53×1136×12÷27686÷(345-296)
答案

(1)420÷28×47,

=15×47,

=705;

(2)719-53×11,

=719-583,

=136;

(3)36×12÷27,

=432÷27,

=16;

(4)686÷(345-296),

=686÷49,

=14.

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