题目内容
【题目】计算下面各题.
46.2﹣46.2÷(4.9+2.8)
(3618÷18﹣140)×27.
【答案】40.2;1647
【解析】
试题分析:(1)先算加法,再算除法,最后算减法;
(2)先算除法,再算减法,最后算乘法.
解:
(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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