3.4除[（1.25加0.45）]简便计算 0.25乘（4.8减7.5除3）简便计算
快很急的
5.32减0.375加0.68减0.625简便计算 1.5乘[0.02除（2.1减2.09）]简便计算
答案:3 悬赏:80 手机版
解决时间 2021-02-26 06:58
- 提问者网友：沉默菋噵
- 2021-02-25 19:35
最佳答案
- 五星知识达人网友：詩光轨車
- 2021-02-25 20:10
5.32减0.375加0.68减0.625
=5.32+0.68+0.375+0.625
=6+1
=7
1.5乘[0.02除（2.1减2.09）]
=1.5×[0.02÷0.01)
=1.5×2
=3
3.4除[（1.25加0.45）]
=3.4÷(1.7)
=2
0.25乘（4.8减7.5除3）
=0.25×(4.8-2.5)
=0.25×2.3
=0.25×(2+0.3)
=0.5+0.075
=0.575
=5.32+0.68+0.375+0.625
=6+1
=7
1.5乘[0.02除（2.1减2.09）]
=1.5×[0.02÷0.01)
=1.5×2
=3
3.4除[（1.25加0.45）]
=3.4÷(1.7)
=2
0.25乘（4.8减7.5除3）
=0.25×(4.8-2.5)
=0.25×2.3
=0.25×(2+0.3)
=0.5+0.075
=0.575
全部回答
- 1楼网友：山有枢
- 2021-02-25 20:59
3.4除[（1.25加0.45）]
=3.4/[(1.25+0.45)]
=3.4/1.7
=2
0.25乘（4.8减7.5除3）
=0.25x(4.8-7.5/3)
=0.25x(4.8-2.5)
=0.25x2.3
=0.575
- 2楼网友：何以畏孤独
- 2021-02-25 20:36
5.32减0.375加0.68减0.625
=(5.32+0.68)-(0.375+0.625)
=6-1
=5;
1.5乘[0.02除（2.1减2.09）]
=1.5×0.02÷(2.1-2.09)
=1.5×(0.02÷0.01)
=1.5×2
=33.4除[（1.25加0.45）]=3.4÷(1.25+0.45)=3.4÷1.7=2;0.25乘（4.8减7.5除3)=0.25×(4.8-2.5)=0.25×2.3=0.575
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