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Author:
陳兪宏
梯形求面積form ptt家教版
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第八周作业
兩位數除以一位數（二）
拼砌四邊形
四邉形 (四年級) 教師版
找出對稱軸
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整數或分數÷分數_工作紙（一）_題3a
最簡分數
兩線段和圓的關係2
Book10-Unit7-拼出平行四邊形
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Statistics
Real Numbers
Cuboid
Variance
Hypergeometric Distribution