分類：數學

【4年級】掌握估商關鍵,打通除法任督二脈

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“txt”: “【4年級】掌握估商關鍵,打通除法任督二脈”
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“category”: {
“txt”: “適用:四年級”
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【1年級】加加減減不簡單低年級的教學解惑

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“txt”: “【1年級】加加減減不簡單低年級的教學解惑”
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“txt”: “適用:一年級”
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“img”: “https://material.hle.com.tw/wp-content/uploads/2023/06/%E5%8A%A0%E5%8A%A0%E6%B8%9B%E6%B8%9B%E4%B8%8D%E7%B0%A1%E5%96%AE-%E4%BD%8E%E5%B9%B4%E7%B4%9A%E6%95%B8%E5%AD%B8%E7%9A%84%E6%95%99%E5%AD%B8%E8%A7%A3%E6%83%91.png”
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