①12÷[(10.75-9.5)×0.4]
②16-16×
③8.36-3.65+1.64-2.35
④14÷ +2×
⑤( + )×8+
⑥12.7×7.5-26× -75%
①28.4×99+28.4
②3.6×201
③0.25×(4+0.4)+0.9
④4×0.8×12.5×2.5
⑤4.8÷1.25÷0.8