( )÷( )=0·45=( ):( )=几分之几
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()÷()=0·45=():()=几分之几()÷()=0·45=():()=几分之几()÷()=0·45=():()=几分之几45,100,9,20,9,20
( )÷( )=0·45=( ):( )=几分之几
( )÷( )=0·45=( ):( )=几分之几
( )÷( )=0·45=( ):( )=几分之几
45,100,9,20,9,20
( )÷( )=0·45=( ):( )=几分之几
45÷27=( ):( )等于( )/( )
(x-0·1)÷0·3-(x+0·2)÷0·5=3
8分之() = 45÷() = 七成五 =()% =():16 =()
915 =( )÷45=3:( )=( )%=小数( ) =折扣( )
5400÷45=?(简便计算)
()÷()=()分之18=45%=()小数=()折
)÷25=0.4=( )÷45
()/10=()÷25=0.4=40%=()÷45
16分之()=45÷( )=0.25
(5-5)÷45=0,(55-10)÷45=1,(555-15)÷45=12找规律
24÷()=()······4 括号里有几种填法
1.6=()/()=()%=():()=()/25 急 ()/10=()÷25 = 0.4 =()%=12/()=():45
1÷(2÷3)÷(3÷4)÷(4÷5)÷(5÷6)······(2003÷2004)=?
9()()4÷48=()0()
( )÷( )=几分之18=45%=( )(小数)
解方程:(3+X)÷(30+X)=0·25
9/()=0、75=()÷()=()/24=()%