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近似值:小數位及有效數字
Author:
Alex CHIK
點擊藍色點或紅色點來找出所輸入數字的上捨入值和下捨入值。
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GeoGebra 互動數學教室
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兩位數除以一位數(一)
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兩位數除以一位數(二)
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