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  1. MathPractice MathPractice Public

    用試算表練習基本的四則運算，讓小學生練習加減乘除快速運算方法。讓學生只要用草稿紙記下少量輔助數字就可以又快又准地心算， 擺脫傳統又慢又容易出錯的豎式計算方法。

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