内容介绍：.一、计算题0.5×8= 4÷0.5= 0.15×7= 6.03×1000= 0.1×0.1= 2.5×6＝ 16×0.01= 1.8×20= 0.12×0.7＝ 2.5×2×4= 0.5×4= 2.5×0.4= 80×0.3= 4.25×4= 2.3×0.06= 54×0.8= 17.5×0.01= 6×6.5= 0.66×0.3= 4.6×0.4= 0.75×0.4=3.6×0.4=39.68