脱式计算:0.75×18÷0.157.28+3.2÷2.52.05÷0.82+33.61.08×0.8÷0.2721.36÷0.8-12.94.28÷0.9÷4.1.
答案:2 悬赏:20 手机版
解决时间 2021-01-17 12:39
- 提问者网友:你给我的爱
- 2021-01-16 15:06
脱式计算:0.75×18÷0.157.28+3.2÷2.52.05÷0.82+33.61.08×0.8÷0.2721.36÷0.8-12.94.28÷0.9÷4.1.
最佳答案
- 五星知识达人网友:由着我着迷
- 2020-10-07 04:57
解:
(1)0.75×18÷0.15,
=13.5÷0.15,
=90;
(2)7.28+3.2÷2.5,
=7.28+1.28,
=8.56;
(3)2.05÷0.82+33.6,
=2.5+33.6,
=36.1;
(4)1.08×0.8÷0.27,
=0.864÷0.27,
=3.2;
(5)21.36÷0.8-12.9,
=26.7-12.9,
=13.8;
(6)4.28÷0.9÷4.1,
≈4.76÷4.1,
≈1.16.解析分析:(1)按照从左向右的顺序进行计算;(2)先算除法,再算加法;(3)先算除法,再算加法;(4)按照从左向右的顺序进行计算;(5)先算除法,再算加法;(6)按照从左向右的顺序进行计算.点评:根据题意,先找请运算顺序,然后再进一步计算,能简算的要简算.
(1)0.75×18÷0.15,
=13.5÷0.15,
=90;
(2)7.28+3.2÷2.5,
=7.28+1.28,
=8.56;
(3)2.05÷0.82+33.6,
=2.5+33.6,
=36.1;
(4)1.08×0.8÷0.27,
=0.864÷0.27,
=3.2;
(5)21.36÷0.8-12.9,
=26.7-12.9,
=13.8;
(6)4.28÷0.9÷4.1,
≈4.76÷4.1,
≈1.16.解析分析:(1)按照从左向右的顺序进行计算;(2)先算除法,再算加法;(3)先算除法,再算加法;(4)按照从左向右的顺序进行计算;(5)先算除法,再算加法;(6)按照从左向右的顺序进行计算.点评:根据题意,先找请运算顺序,然后再进一步计算,能简算的要简算.
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- 1楼网友:天凉才是好个秋
- 2020-02-05 20:25
哦,回答的不错
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