【(21*3/7+4/7*21)*1/4(99+9/10)÷-查字典问答网
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来自孙丽娜的问题

  【(21*3/7+4/7*21)*1/4(99+9/10)÷94/5+5/6÷5/814/15÷[(4/5+2/3)*10/11](5/6+4/5)*301/3+3÷1/25/6*6/5-9/10÷9/54-5/11-7/111/8*58+1/8*41+1/84/5*4/7*5/4-1/24/5*5/6+2/5÷3/54/5÷[(5/8-1/2)÷5/8]235-135÷183/5*153-0.6*53】

  (21*3/7+4/7*21)*1/4

  (99+9/10)÷9

  4/5+5/6÷5/8

  14/15÷[(4/5+2/3)*10/11]

  (5/6+4/5)*30

  1/3+3÷1/2

  5/6*6/5-9/10÷9/5

  4-5/11-7/11

  1/8*58+1/8*41+1/8

  4/5*4/7*5/4-1/2

  4/5*5/6+2/5÷3/5

  4/5÷[(5/8-1/2)÷5/8]

  235-135÷18

  3/5*153-0.6*53

1回答
2020-03-23 00:44
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方燕飞

  (21*3/7+4/7*21)*1/4

  =21*(3/7+4/7)*1/4

  =21*1/4

  =5.25

  (99+9/10)÷9

  =99÷9+9/10÷9

  =11+1/10

  =111/10

  4/5+5/6÷5/8

  =4/5+4/3

  =32/15

  14/15÷[(4/5+2/3)*10/11]

  =14/15÷(14/15*10/11)

  =14/15÷28/33

  =11/10

  (5/6+4/5)*30

  =5/6*30+4/5*30

  =25+24

  =49

  1/3+3÷1/2

  =1/3+6

  =19/3

  5/6*6/5-9/10÷9/5

  =1-1/2

  =1/2

  4-5/11-7/11

  =4-12/11

  =32/11

  1/8*58+1/8*41+1/8

  =18*(58+41+1)

  =1800

  4/5*4/7*5/4-1/2

  =(4/5*5/4)*4/7-1/2

  =4/7-1/2

  =1/14

  4/5*5/6+2/5÷3/5

  =2/3+1/2

  =7/6

  4/5÷[(5/8-1/2)÷5/8]

  =4/5÷(1/8÷5/8)

  =4/5÷1/5

  =4

  235-135÷18

  =235-7.5

  =227.5

  3/5*153-0.6*53

  =3/5*(153-53)

  =3/5*100

  =60

  累死我了

2020-03-23 00:48:00

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