*(这是乘号)0.45*0.53.6*5.46.5*4.48.5*4.37.8*5.63.4*7.20.25*0.694.33*5.889.21*7.84.56*0.91这是竖式0.25*40.4*0.50.66*10.125*80.08*0.1250.9*0.60.5*0.80.7*0.60.9*0.70.02*5这是口算
*(这是乘号)0.45*0.53.6*5.46.5*4.48.5*4.37.8*5.63.4*7.20.25*0.694.33*5.889.21*7.84.56*0.91这是竖式0.25*40.4*0.50.66*10.125*80.08*0.1250.9*0.60.5*0.80.7*0.60.9*0.70.02*5这是口算