():4 = ()/20=0.8=()% ()
():4 = ()/20=0.8=()% ()
( )分之4=( )比20=0.8=12除以( )=( )%
20除以( )=( )%=0.8=( ):20
40÷()=():20=0.8=()%
10分之8=5分之4=0.8:20=4%=()折=()(填小数)
( ):5=0.8=( )/20=( )除以20=( )%
():20=()分之8=0.8=()除15=()分之20
20/( )=8:( )=几分之几=0.8=( )%=( )折
():20=0.8=()÷15=()%
():20=()分之8=0.8=()除以15=()分之20
⒈ ( )∶20 = 24∶( )= ( )分之12 = 0.8 = ( )%
20÷( )=15分之( )=0.8=( )% =( ):( )