两个因数的末尾一共有几个零,积的末尾就有几个零。
- 时间:2020-04-12 12:48:25
- 分类:数学世界
- 阅读:89 次
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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