在3□2□的方格中填入适当的数字，使组成的四位数是能被15整除的_爱下问搜题

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问题填空题

在3□2□的方格中填入适当的数字，使组成的四位数是能被15整除的数中最大的一个，这个数是______．

答案

能被15整除就是同时能被3和5整除，所以个位是0或5，

设百位是x，则当个位是0时，3+x+2+0能被3整除，此时x最大为7，此时这个数为3720；

当个位为5时，3+x+2+5能被3整除，此时x最大为8，此时这个数为3825；

因为3825＞3720，

所以这个四位数最大为3825；

故答案为：3825．

改错题

短文改错。

My mom learned early on how to cook for a large family. Grow up on a small farm, she was the

old of seven children. So you can imagine responsibility that fell on her shoulder. She mom taught her

how to make pies and can fruits and vegetables. She lets her make meals for companies, too. As a

wife and a mother, mom baked and cooked even much, because I have six brothers and four sisters.

With so a large family, mom was always make delicious dishes while we were growing up. She always

used the freshest herbs and vegetables from our garden. And for each birthday, she would make the

birthdaychild's favorite meal.

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