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_数学解答

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

人气：496 ℃　时间：2019-12-01 09:53:19

解答

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