(9.85-6.4)÷1.512.6+7.4÷2025.2÷9+28.217.5÷(12.8+22.2)12.4×(800÷16)18.9÷[(9.6-6.9)×1.4]3.04-3.04×0.25.

题目简介

(9.85-6.4)÷1.512.6+7.4÷2025.2÷9+28.217.5÷(12.8+22.2)12.4×(800÷16)18.9÷[(9.6-6.9)×1.4]3.04-3.04×0.25.

题目详情

(9.85-6.4)÷1.512.6+7.4÷2025.2÷9+28.217.5÷(12.8+22.2)
12.4×(800÷16)18.9÷[(9.6-6.9)×1.4]3.04-3.04×0.25.
题型:解答题难度:中档来源:不详

答案

(1)(9.85-6.4)÷1.5,
=3.45÷1.5,
=2.3;

(2)12.6+7.4÷20,
=12.6+0.37,
=12.97;

(3)25.2÷9+28.2,
=2.8+28.2,
=31;

(4)17.5÷(12.8+22.2),
=17.5÷35,
=0.5;

(5)12.4×(800÷16),
=12.4×50,
=620;

(6)18.9÷[(9.6-6.9)×1.4],
=18.9÷[2.7×1.4],
=18.9÷3.78,
=5;

(6)3.04-3.04×0.25,
=3.04-0.76,
=2.28.

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