①3.6- +40%-
②[ -( + )]÷
③0.57×101﹣0.57
④86×
9×3.14= +÷= 36×= 728﹣299=
72÷0.4= 75×10%= 1÷×= 12.56÷6.28=
45×0.945 3.8﹣3.7 ÷1