作业帮用简便方法计算9.1/0.13+0.168*0.59.1/0.13+0.168*0.5选定后会加分9.1÷0.13+0.168×0.5
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用简便方法计算9.1/0.13+0.168*0.59.1/0.13+0.168*0.5选定后会加分9.1÷0.13+0.168×0.5
用简便方法计算9.1/0.13+0.168*0.5
9.1/0.13+0.168*0.5
选定后会加分
9.1÷0.13+0.168×0.5
用简便方法计算9.1/0.13+0.168*0.59.1/0.13+0.168*0.5选定后会加分9.1÷0.13+0.168×0.5
① 9.1/0.13+0.168*0.5
=7*1.3/0.13+0.168/2
=7*10+0.084
=70.084
② 9.1/0.13+0.168*0.5
=91/10*100/13+0.168/2
=7*10+0.084
=70.084