问题 解答题

计算下面各题.

46.2-46.2÷(4.9+2.8)

(3618÷18-140)×27.

答案

(1)46.2-46.2÷(4.9+2.8),

=46.2-46.2÷7.7,

=46.2-6,

=40.2;

(2)(3618÷18-140)×27,

=(201-140)×27,

=61×27,

=1647.

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