【怎样算方便就怎样算(1)7.36-5.4+1.74-1.6-查字典问答网
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  【怎样算方便就怎样算(1)7.36-5.4+1.74-1.6(2)3.6×1.2÷3.6×1.2(3)8×0.37+1.63÷0.125(4)100-4.05÷0.36-2.5×5(5)[(4.3-2.01)+2.2]÷4(6)(1.72+1.72+1.72+1.72)÷3.2×2.5.】

  怎样算方便就怎样算

  (1)7.36-5.4+1.74-1.6

  (2)3.6×1.2÷3.6×1.2

  (3)8×0.37+1.63÷0.125

  (4)100-4.05÷0.36-2.5×5

  (5)[(4.3-2.01)+2.2]÷4

  (6)(1.72+1.72+1.72+1.72)÷3.2×2.5.

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2020-05-24 18:43
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刘玉洁

  (1)7.36-5.4+1.74-1.6

  =(7.36+1.74)-(5.4+1.6)

  =9-7

  =2;

  (2)3.6×1.2÷3.6×1.2

  =3.6÷3.6×1.2×1.2

  =1×1.2×1.2

  =1.44;

  (3)8×0.37+1.63÷0.125

  =8×0.37+1.63×8

  =8×(0.37+1.63)

  =8×2

  =16;

  (4)100-4.05÷0.36-2.5×5

  =100-11.25-12.5

  =100-(11.25+12.5)

  =100-23.75

  =76.25;

  (5)[(4.3-2.01)+2.2]÷4

  =[2.29+2.2]÷4

  =0.09÷4

  =0.0225;

  (6)(1.72+1.72+1.72+1.72)÷3.2×2.5

  =1.72×4÷3.2×2.5

  =1.72×(4×2.5)÷3.2

  =1.72×10÷3.2

  =17.2÷3.2

  =5.375.

2020-05-24 18:46:27

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