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一年级数学下册第3单元生活中的数3数豆子提高习题2（无答案）北师大版.doc

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1数豆子提高习题一、想一想，写一写。1.一个两位数，十位上的数比个位上的数少 4，这个两位数可能是多少？你能写出几个？2.一个两位数，个位数字和十位数字合起来的 6，这样的两位数你能写出几个？3.用 9、0、5 这三个数字组成各个数位都不同的两位数，其中最大的数是多少？最小的数是多少？

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