15%×20%=
1×10%÷=
5+25%=
1-80%=
0.35÷35%=
1÷10%×100=
×5= ÷ = ÷8=
0÷ = × = ×1.5=
⑴0.12:0.3 ⑵1:⑶38:190 ⑷
÷3