判一判．
（1）0和任何数相乘都得0．______
（2）因数中间有0，积中间也一定有0．______
（3）0和任何数相加都得0．______．
（1）0和任何数相乘都得0．所以正确．
（2）因数中间有0，积中间不一定有0．如103×6=318．所以因数中间有0，积中间也一定有0．错误．
（3）0和任何数相加都得原数．所以0和任何数相加都得0．错误．
故答案为：√，×，×．
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| 假如你的名字叫Mike。今天在网上看到下面这则征笔友 (Pen-pal) 的帖子，请根据帖子内容写一封 词数为50-70的回信。 要求：1、表达交友愿望； 2、陈述交友理由； 3、提供个人信息。注意：文章的开头和结尾已给出, 不计入总词数；写作时，要求衔接过渡 自然。 Post: Pen-pal wanted: 14 or 15 yrs old Posted by Kayla on 6 / 21 / 05 Hello! I am 14 yrs old. My name is Kayla. My birthday is May 13. I like to read, climb trees, do maths, and I like to watch football games. I love English and I want more chances to touch it. I think I need to do what I like to do. I'd like to have a pen-pal who has different hobbies from me so that we can learn from each other. Please write to me. My email address is kayla@hotmail.com Thanks! Kayla
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