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(1)19.28+1.82÷0.7(2)10.56×3.75﹣3.75×0.56(3)（71.2﹣71.2×0.9）÷0.25(4)14.53﹣（2.64+0.53）-1.36(5)13.5÷[（2﹣0.8）×4.5](6)[（6.1﹣4.6）÷0.8﹣1]÷0.4
题目详情
| (1)19.28+1.82÷0.7 | (2)10.56×3.75﹣3.75 ×0.56 | (3)（71.2﹣71.2×0.9）÷0.25 |
| (4)14.53﹣（2.64+0.53）-1.36 | (5)13.5÷[（2﹣0.8）×4.5] | (6)[（6.1﹣4.6）÷0.8﹣1] ÷0.4 |
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答案和解析
| (1) 19.28+1.82÷0.7 =19.28+2.6 =21.88 | (2) 10.56×3.75﹣3.75×0.56 =（10.56﹣0.56）×3.75 =10×3.75 =37.5 | (3)（71.2﹣71.2×0.9）÷0.25 =（1﹣0.9）×71.2÷  =7.12×4 =28.48 |
| (4)14.53﹣（2.64+0.53）﹣1.36 =（14.53﹣0.53）﹣（2.64+1.36） =14﹣4 =10 | (5)13.5÷[（2﹣0.8）×4.5] | (6)[（6.1﹣4.6）÷0.8﹣1]÷0.4 =[1.5÷0.8﹣1]÷0.4 =[1.875﹣1]÷0.4 =0.875÷0.4 =2.1875． |
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