简便计算过程方法如下解:18.54x0.62-0.62x8.54=（18.54-8.54）×0.62=10×0.62=6.2
18.54x0.62-0.62x8.54=（18.54-8.54）x0.62=10x0.62=6.2
=(18.54-8.54)x0.62=10x0.62=6.2
