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三年级数学下册六《认识分数》比大小习题北师大版.doc

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1比大小 一、用 5个同样大小的正方体摆成下图，请你连一连。二、解决问题。1. 猜一猜我表示多少？我是一个三位数，比最大的三位数小 9。中教我是一个四位数，十位数字是 9，千位数字是 7，个位和百位上的数字相同，而且这个数字只读一次。2. 快乐小鸟家族有 8只灰鸽子，35 只白格子，每个窝只住 5只，至少搭几个窝？3.贝贝今年的年龄是最大的两位数加上最小的两位数，再减去最小的三位数，请问贝贝明年几岁了？2参考答案一、略二、1. 99170902. 9个3. 10岁

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