200÷4= 630÷3= 32×20= 742÷7= 10×0= 40×20=50×11= 240÷2= 20×70= 840÷8= 360÷3= 800÷4=0÷32= 50×20= 60÷2= 23×2= 40×20= 10×100=
÷12===15: = %= .
÷25=80%=12: == (小数)
:24=25: =1= ÷12=5÷ = %
被除数是8,除数是11,写成除法算式是 ,写成分数的形式是 ,写成比的形式是 .
20: =0.8==24÷ = %.