= = = 3%+2=
75%÷ = = = 3.2÷10%=
① ÷[( - )× ]
②( + - )×24
③ ÷[( + )×3]
④35÷[ ×(1- )]
⑤1÷[ -( + )]
⑥ ÷[ ×( + )]
÷3= ×15= 2- = 1+2%=
÷ = 5÷ = ×75% = ×4× =
+ × = ×99+99× =
①
②
③
④
⑤
⑥6.4×(3.2-1.8)÷16%