小学奥数三年级 - 第21讲：方阵问题 - 中文
Synopsis
欢迎一起学习三年级奥数。今天我们的学习内容是：方阵问题。 参考答案： 练习: 1. 21个; 2. 24棵; 3. 13个; 4. 441人; 5. 168个; 6.
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