( )/20=20÷( )=8:( )=0.8=( )%
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( )/20=20÷( )=8:( )=0.8=( )%
( )/20=20÷( )=8:( )=0.8=( )%
( )/20=20÷( )=8:( )=0.8=( )%
16 16 10 80
( )/20=20÷( )=8:( )=0.8=( )%
-20÷(-5)-(-56)÷8=( )
( )÷4=9/( )= ( )÷20=0.75=( )/8
()÷8=1/4=20:()
)=16:20=8÷( )=( )%=( )(填小数)
240÷()=160÷()=560÷()=()÷8=40×()=80÷()=()×20
16:20=8:()=五分之( )=1.2÷()=()%
():8=15/()=0.375=()÷20=()%
15÷()=62 .5%=40分之()=()÷8=20÷()
8÷( )=4/5=( )/20 = 20∶( )=( ) (填小数)8÷( )=4/5=( )/20 = 20∶( )=( )(填小数)
( )÷8=( )分之9=0.75=( ):20=( )%
()÷8=0.25=()分之4=20:()=10分之1:()
4分之几=6:( )=8÷( )=( ):20=0.25
( ):5=( )分之8=( )÷20 =0.2=( )%
()÷20=15:()=1.25=()%
15:()=()÷20=1.25=()%
40÷()=():20=0.8=()%
20÷()=()分之5=1÷20=():()?