心算．0.6×0.7=0.9×0.05=0.12×0.6=1.2×0.3=0.03×0.6=0.16×0.5=0.7×0.8=23×0.3=0.15×0.4=

网友回答

解：0.6×0.7=0.42；0.9×0.05=0.045；0.12×0.6=0.072；1.2×0.3=0.36；0.03×0.6=0.018；0.16×0.5=0.08；0.7×0.8=0.56；23×0.3=6.9；0.15×0.4=0.06．

解析分析：根据小数的乘法法则计算即可求解．

点评：考查了小数乘法，解题的关键是熟练掌握计算法则，正确进行计算．