分數 - (39)異分母的減法計算應用題2 | 分數 | 均一教育平台

小學五年級數學「分數」教學，本影片說明異分母分數的減法應用題型。 ... Use this menu to view and help create subtitles for this video in many different languages. You'll probably want to hide YouTube's captions if using these subtitles.

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