问题标题:
12题数学计算(写出步骤)可加分84.[(-6又1/4)+(-2又1/2)^2]+(6又1/2)^2*(-4/13)87.-2^4/(2又2/3)^2-5又1/2*(-1/6)+1.7590.(1又3/4-7/10+6又1/8)/(-7/8)92.89又29/30*(-9)+9又23/40*(-4)93.-1/7-[-2/7-2.25-(-4又1/7)-4又1/4]94.9又28/
问题描述:

12题数学计算(写出步骤)可加分

84.[(-6又1/4)+(-2又1/2)^2]+(6又1/2)^2*(-4/13)

87.-2^4/(2又2/3)^2-5又1/2*(-1/6)+1.75

90.(1又3/4-7/10+6又1/8)/(-7/8)

92.89又29/30*(-9)+9又23/40*(-4)

93.-1/7-[-2/7-2.25-(-4又1/7)-4又1/4]

94.9又28/29*25-102/29*24

95.|-(-2)^2+(-2)^3|-|(1/2)^3-(1/2)^2|*|-2|^

96.(1又1/2-7/8-7/12)/(1/2)^3*(-1又1/3)^2

97.4*1又1/4-[(18-3又3/4*1.2/1/4*25-1.5/0.1]/(-1又1/2)

98.1又1/2/3/4*(-2)+1/2/[(-1/2)^3-(1又1/2)^2]*|-9又1/2|-0.75^2

99.4*125%-[(18-3又3/4*1.2/1/4)*25-1.5/0.1]/(-1又1/2)

100.-5.6+(-1又1/3)-(-5又3/5)-1又2/3

明天早上7::00之后发的作废……

唐九阳回答:
  84.[(-6又1/4)+(-2又1/2)^2]+(6又1/2)^2*(-4/13)   =-25/4+25/4+(13^2/4)*(-4/13)   =-13   87.-2^4/(2又2/3)^2-5又1/2*(-1/6)+1.75   =-16/(64/9)+11/12+7/4   =-9/4+11/12+7/4   =5/12   90.(1又3/4-7/10+6又1/8)/(-7/8)   =(7/4)/(-7/8)-(7/10)/(-7/8)+(49/8)/(-7/8)   =(7/4)*(-8/7)-(7/10)*(-8/7)+(49/8)*(-8/7)   =-2+4/5-7   =-41/5   92.89又29/30*(-9)+9又23/40*(-4)   =(90-1/30)*(-9)+(10-17/40)*(-4)   =810+3/10-40+17/10   =770+2   =772   93.-1/7-[-2/7-2.25-(-4又1/7)-4又1/4]   =-1/7-(-2/7-9/4+28/7-17/4)   =-1/7-(26/7-26/4)   =-1/7-26/7+26/4   =27/14   94.9又28/29*25-102/29*24   =(10-1/29)*25-(102/29)*24   =250-25/29-102*24/29   =250-2473/29   =174又20/29   95.|-(-2)^2+(-2)^3|-|(1/2)^3-(1/2)^2|*|-2|^2   =(12-1/8)*4   =48-1/2   =95/2   96.(1又1/2-7/8-7/12)/(1/2)^3*(-1又1/3)^2   =〔(3/2)*8-(7/8)*8-(7/12)*8〕*(16/9)   =(12-7-14/3)*(16/9)   =16/27   97.4*1又1/4-[(18-3又3/4*1.2/1/4*25-1.5/0.1]/(-1又1/2)   =5-{[18-(15/4)*(6/5)*4〕*25-15}/(-3/2)   =5-(12*25-15)*(-2/3)   =5+300*(2/3)-15*(2/3)   =195   98.1又1/2/3/4*(-2)+1/2/[(-1/2)^3-(1又1/2)^2]*|-9又1/2|-0.75^2   =-(3/2)*(4/3)*2-〔(1/2)/(-1/8-9/4)〕*(19/2)-9/16   =-4+9-9/16   =71/16   99.4*125%-[(18-3又3/4*1.2/1/4)*25-1.5/0.1]/(-1又1/2)   =6-{[18-(15/4)*(6/5)*4〕*25-15}/(-3/2)   =6-(12*25-15)*(-2/3)   =6+300*(2/3)-15*(2/3)   =196   100.-5.6+(-1又1/3)-(-5又3/5)-1又2/3   =-5.6-4/3+5.6-5/3   =-4/3-5/3   =-3
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《12题数学计算(写出步骤)可加分84.[(-6又1/4)+(-2又1/2)^2]+(6又1/2)^2*(-4/13)87.-2^4/(2又2/3)^2-5又1/2*(-1/6)+1.7590.(1又3/4-7/10+6又1/8)/(-7/8)92.89又29/30*(-9)+9又23/40*(-4)93.-1/7-[-2/7-2.25-(-4又1/7)-4又1/4]94.9又28/|高中数学问答-字典翻译问答网》
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