直接写出得数.47+63= 190×2= 3900+500= 589﹣49= 135﹣45= 0×2013=78÷9= 65÷8= 500×6= 351﹣100= 1﹣= =.
÷50=0.12=.
= :24=5:8= :40= %
3÷ ==0.75=6: = %
3÷ ==0.6=6: = %.
3:5==9: == .