叔叔买5箱雪梨用了190元.他还想再买8箱这样的雪梨,还需要准备多少钱?
3÷ ==0.6=6: = %.
3:5==9: == .
=0.375=12÷ = %=0.45= %= ÷ .
= ÷ = = % ÷ =0.25== %
在括号里填上合适的数. 6÷12=7÷16=40÷82= ÷5=11÷ = ÷ =.