All Questions
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在等号左边的数字之间添加上适当的运算符号 …
- 109 views
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在下述等式之间只添加加号或减号，使之成立 …
- 136 views
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- 135 views
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- 230 views
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- 180 views
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- 148 views
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- 75 views
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- 77 views
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- 82 views
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- 134 views
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- 104 views
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- 223 views
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在方格中填入所有一位数的不同奇数使图中的 …
- 373 views
- 0 answers
- 0 votes
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请使用火柴棒拼成两个大小不一的正方形。可 …
- 239 views
- 1 answers
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- 305 views
- 0 answers
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- 461 views
- 1 answers
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下图中有一个用10根火柴棒拼成的三角形。 …
- 356 views
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- 287 views
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- 255 views
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- 346 views
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