20×70%= 70÷14= 30÷15%=
120×0.3%= 8-0.35= 3÷3%= 125%×0.8=
÷( + × ) 10.15﹣6.25﹣3.75+8.85
( + )×12+ 65÷ -38× +
25%×+× ×60%÷ 0.25++75%+87.5%
+×- ×101-0.6 (-20%)÷80%
×-25%× (1-×)÷ 85×+15×75%
②22÷3
③20.2÷6
④28.28÷4