16:32 0.3:0.45 : :14
×2= ×1= ×0= 1.6×=
5÷(1+)= 4×0.5= 0.75×= 1﹣1×=
+×= 24÷= ×0.25= +=
10﹣= 1﹣×= ×6÷×6= 1÷×=
问题:
×
10
5
6
20
4
3