用简便方法计算9.1/0.13+0.1680.59.1/0.13+0.1680.5选定后会加分9.1÷0.13+0.168×0.5

分类: 作业答案 • 2021-12-19 11:39:01

问题描述：

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

答

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

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