解:(1)0.73×2.15=1.5695,
(2)7.38÷1.6=4.6125.
分析:(1)按這整數(shù)乘法的方法進行計算,再看因數(shù)中一共有幾位小數(shù),就從積的末尾起數(shù)出幾位點上小數(shù)點.
(2)先把除數(shù)的小數(shù)點向右移動一位,使它變成整數(shù),除數(shù)的小數(shù)點向右移動幾位,被除數(shù)的小數(shù)點也向右移動相同的位數(shù),然后按著除數(shù)是整數(shù)方法進行計算.
點評:此題考查小數(shù)乘法,小數(shù)除法,小數(shù)乘法按整數(shù)乘法法則計算;小數(shù)除法,先移動除數(shù)的小數(shù)點使它變成整數(shù),然后按除數(shù)是整數(shù)除法計算.