0.125×0.25×32 0.375×3.4+4.6×
(-+)÷ 6.72-2.3÷0.5×0.8
①85×+15×75%
②2.7÷(4-82%﹣18%)
③(-75%)÷(50%+)
④0.55×8-60%
⑤+(50%-)÷
①0.53×2.5+
②25×0.032×12.5
③ [()×]
④6.83+17.9﹣0.83+32.1