Question

4.167×0.25積有

五

位小數(shù)．

Answer 1

分析：根據(jù)題意，兩個(gè)因數(shù)的小數(shù)位數(shù)的和，就是積的小數(shù)位數(shù)．

解答：解：4.167×0.25中，4.167是三位小數(shù)，0.25是兩位小數(shù)，那么積的小數(shù)位數(shù)是：3+2=5（位）．
故答案為：五．

點(diǎn)評(píng)：兩個(gè)因數(shù)的小數(shù)位數(shù)的和等于積的小數(shù)位數(shù)，注意兩個(gè)因數(shù)相乘末尾有0時(shí)積的位數(shù)的變化．