Question

4.68×0.07的積有

 

位小數(shù)．

Answer 1

考點(diǎn)：小數(shù)乘法

專題：運(yùn)算順序及法則

分析：根據(jù)小數(shù)乘法的計(jì)算法則：看兩個(gè)因數(shù)一共有幾位小數(shù)，就從積的右邊起數(shù)出幾位點(diǎn)上小數(shù)點(diǎn)．據(jù)此解答．

解答： 解：根據(jù)小數(shù)乘法的計(jì)算法則可知：積的小數(shù)位數(shù)等于兩個(gè)因數(shù)小數(shù)位數(shù)的和，
算式4.68×0.07，兩個(gè)因數(shù)中共有四位小數(shù)，所以4.68×0.07的積有四位小數(shù)；
故答案為：四．

點(diǎn)評(píng)：此題考查的目的是掌握小數(shù)乘法的計(jì)算法則，明確積的小數(shù)位數(shù)等于兩個(gè)因數(shù)小數(shù)位數(shù)的和．