3.875x0.2+38.75×1.25-0.155×12.5这道题的简便运算
答案:4 悬赏:50
解决时间 2021-12-15 04:34
- 提问者网友：冷天寄予
- 2021-12-14 14:57
3.875x0.2+38.75×1.25-0.155×12.5这道题的简便运算
最佳答案
- 二级知识专家网友：初心未变
- 2021-12-14 15:25
3.875x0.2+38.75×1.25-0.155×12.5
=3.875x0.2+(3.875-0.155)×12.5
=0.775+3.72×12.5
=0.775+3.72×(10+2.5)
=0.775+37.2+9.3×0.4×2.5
=37.975+0.93
=38.905
=3.875x0.2+(3.875-0.155)×12.5
=0.775+3.72×12.5
=0.775+3.72×(10+2.5)
=0.775+37.2+9.3×0.4×2.5
=37.975+0.93
=38.905
全部回答
- 1楼网友：颜值超标
- 2021-12-14 18:51
3.875x0.2+38.75×1.25-0.155×12.5
=3.875*0.2+1.25*(38.75-1.55)
=0.775+1.25*37.2
=0.775+372/8
=0.775+46.5
=47.275
- 2楼网友：情战凌云蔡小葵
- 2021-12-14 18:19
3.875x0.2+38.75×1.25-0.155×12.5
=3.875×0.2+3.875×12.5-0.155×25×0.5
=3.875×0.2+3.875×12.5-0.155×25×0.5
=3.875×0.2+3.875×12.5-3.875×0.5
=3.875×0.2+3.875×(12.5-0.5)
=3.875×0.2+3.875×10+3.875×2
=0.775+38.75+7.75
=47.275
- 3楼网友：啵啵桃汀
- 2021-12-14 17:03
3.875*0.2+12.5*3.72=0.775+12.5*4*0.93=0.775+50*0.93=0.775+46.5=47.275
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