10.1x13.5用简便计算=(10+0.1)x13.5=10x13.5+0.1x13.5=135+1.35=136.35
10.1Ⅹ13.5 =(10+0.1)x13.5 =10x13.5+0.1x13.5 =135+1.35 =136.35