(1)9/2÷27=6/2÷18=3/2÷9=1/2÷()=()÷()=
(1)9/2÷27=6/2÷18=3/2÷9=1/2÷()=()÷()=
1/2÷(-4/7)=-2 4÷(-24)=-1/6 -18÷(-3)=-6 6÷(-1/3)=-9 这四个里面有几个对
39×9/14÷13/14÷18=?9/20×1/2+19/20÷2=?(1/4+1/3÷1/2)÷1/5=?请脱式计算
39×9/14÷13/14÷18=?9/20×1/2+19/20÷2=?(1/4+1/3÷1/2)÷1/5=?脱式怎么计
2÷(1×3)+2÷(3×5)+2÷(5×7)+2÷(7×9)=
1/2÷4/5÷(2/9×3/8)=?简便计算
18÷2=9÷3=3、21÷3=7÷1=7,
设a=1÷2÷3÷4,b=1÷(2÷3÷4),c=1÷(2÷3)÷4,d=1÷2÷(3÷4),计算(b÷a)÷(c÷d)
12/5×8/3=()÷24/13=()×3/1=()÷26/1=() 2/1×3/1=()÷2/1=()÷9/4=()
(x+1/2)÷5/24=8/9÷1/6怎么做
-6*(+6)= -1/3*27= 8÷(-16)= -25÷(-2/3)=
1÷(2÷3)÷(3÷4)÷(4÷5)÷(5÷6)······(2003÷2004)=?