3.36×0.07的積有4位小數(shù).________.
正確
分析:3.36末尾數(shù)是6,0.07末尾數(shù)7,6×7=42,那么3.36×0.07的積的小數(shù)位數(shù)是這兩個小數(shù)的小數(shù)位數(shù)和,然后再進一步判斷即可.
解答:根據(jù)題意可得:
3.36是兩位小數(shù),0.07是兩位小數(shù);
6×7=42;
2+2=4;
所以,3.36×0.07的積是四位小數(shù);
因此,3.36×0.07的積有4位小數(shù)是正確的.
故答案為:正確.
點評:兩個小數(shù)相乘,如果兩個小數(shù)的末尾數(shù)相乘的末尾不是0,它們的乘積的小數(shù)位數(shù)就是這兩個小數(shù)位數(shù)的和.