36×(+-) [1-(-)]÷ 2.5×4.8+75×0.48
2.25×+8.75÷+75% 2.87+5.6﹣0.87+4.4 0.25×32×12.5
① + ÷
②( + )×24
③32﹣1
④ × + ×
① ÷[1-( + )]
②48×( + - )
③12.5×7×3.2
①3.86+6.4+2.14+7.6
②5.2÷0.32﹣0.12
③()×15
④
⑤
⑥