1、竖式计算: 1.06×2.5= 2.7×0.43= 28.2×0.45= 5.6×1.3= 0.1575÷3.15= 0.612÷1.8= 2、脱式计算: 2.139÷9.3×6.2 376-1.5÷0.24 0.72×0.8÷0.32 4.264÷(0.16×20.5)