问题 解答题 用竖式计算下面各题.5.4×0.8=0.46×0.5=1.52×0.07=3.74×2.3=12.5×0.15=8.03×7.4= 答案 5.4×0.8=4.32;0.46×0.5=0.23;1.52×0.07=0.1064;3.74×2.3=8.602;12.5×0.15=1.875;8.03×7.4=59.422;