用简便计算:10.1*27 13.7*6.1+3.9*13.7 87.5*0.05*2
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/18 03:57:00
用简便计算:10.1*27 13.7*6.1+3.9*13.7 87.5*0.05*2
10.1*27 13.7*6.1+3.9*13.7 87.5*0.05*2
10.1*27 13.7*6.1+3.9*13.7 87.5*0.05*2
![用简便计算:10.1*27 13.7*6.1+3.9*13.7 87.5*0.05*2](/uploads/image/z/2212714-10-4.jpg?t=%E7%94%A8%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%3A10.1%2A27+13.7%2A6.1%2B3.9%2A13.7+87.5%2A0.05%2A2)
10.1*27 =10*27+0.1*27=270+2.7=272.7
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13.7*6.1+3.9*13.7 =13.7*(6.1+3.9)=13.7*10=137
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87.5*0.05*2=87.5*0.1=8.75
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13.7*6.1+3.9*13.7 =13.7*(6.1+3.9)=13.7*10=137
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87.5*0.05*2=87.5*0.1=8.75