(-0.5)+9/4+(-19/2)+9.25 =(-10)+2.25+9.25 =1.5 (-4/5)+6 =(-4/5)+30/5 =26/5
(-0.5)+9/4+(-19/2)+9.25=?;(-4/5)+6=?
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相关问题
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2.5+7.5= 9.8-0.8= 1.4+7.6= 4.5+5.5= 19.8-9.8= 9.4+0.6=
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解方程: 9x/0.7=9; 25-3x=19; 4(x-9)=4; x-18=4=8; 5.6x-4.5/3=5.5;
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解方程:9x/0.7=9; 25-3x=19; 4(x-9)=4; x-18=4=8; 5.6x-4.5/3=5.5;
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4/9÷( 5/6 - 0.2 ) 19/25×(7.2 +4/5 )- 17/25÷ 1/8 [ 2.5-( 17/2
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简便运算:9.4+9.9*99 3.2*2.25-3.2 25/6.4*8/5 2.37*6.3+23.7*0.37 5
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脱式计算:(1)0.25×〔[7/20]÷(4-2.4×[5/6])〕(2)〔1[4/9]-8.19÷(5.25+1[3
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能简便得要简便:(4/7+8/9)×2/25 (5/6-5/9)×18/5 1÷(1-3/4×8/9÷5/6) 19/2
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5.6*9/4+22/5*2.25
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1.(5.75-4.75)/[2.5+(0.75*1.25*8) 2.(6.9*3.6*3.5)/(1.25/0.25)
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1÷0.25=?7.9÷0.01=?(2.5+0.9)×0.4=?(1.5+0.25)×4=?