÷ ÷
×100
× ÷
①5.66-0.96÷6×5
②4.12×6.9-4.12+4.12×1.1
③(1÷0.2+0.2÷1)÷(6-3.4)
④(4.2-0.42)÷3.6+6.4
⑤3.2÷(0.32×0.25)
⑥7.2-1.2×[0.01÷(1-0.9)]
①36×()
②1.3×37.5%+2.7×
③ [()]
④13÷()×