①101×
②0.16+4÷(-)
③(-+)×12
④3.5×+5.5×80%+0.8
37.5×99+1
①
②7.79÷2.5÷0.8
③12×[×3]
④48.96-3.18-6.82
②36×()
③
④
⑤3.24×0.76+3.24×0.24
⑥
①0.53×2.5+
②25×0.032×12.5
③ [()×]
④6.83+17.9﹣0.83+32.1