题目内容

计算下面各题.
46.2-46.2÷(4.9+2.8)
(3618÷18-140)×27.

(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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