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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
▼优质解答
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]
  =13.5÷4.5×1.2
  =3×1.2
  =2.5

(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.