两个因数的末尾一共有几个零，积的末尾就有几个零。（对还是错？）

一般来说，判错。因为在算式20×50中，因数中共有2个0，但积是1000，有3个0。

本题考点：

整数的乘法及应用。

考点点评：

整数末尾有0的乘法：可以先把0前面的数相乘，然后看各因数的末尾一共有几个0，就在乘得的数的末尾添写几个0。

怎样将题改为正确：两个因数的末尾一共有几个零，积的末尾就至少有几个零。

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