600×()=220 150×()=40 5/18×()=25 ()÷24=1/3 ()÷45=4/15
3/5=9/15=27/45=18÷()=()填小数
12÷(3/4÷1/5) = =
12/5×8/3=()÷24/13=()×3/1=()÷26/1=() 2/1×3/1=()÷2/1=()÷9/4=()
)=( )÷25=0.6=18;( )=( )%
3÷4=():24=12÷()=36÷()=3+6÷4+()=3+()÷4+24
0.375=3÷()=40分之()=():24=24:()
0.12=3/()=24:()=()/25=()÷()
求未知数x.(1)436÷x=10×25% (2)x-108÷1.5=70÷150% (3)0.4:45
()÷5=18比15=()比25=36比()=()
12比()=4分之3=()÷()=()÷24
()/8=10/5=()÷4=360÷()=()/1
3÷()=24,3÷()=0.8