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南一數作6上p43頁 15點+5點
Dec 30th 2013, 09:33

三.利用x表示未知數,先一題意列出等式,在算算看
(5)爸爸從前包拿出550元後,再將錢包裡的前評分給4個小孩,每個小孩分得330元,爸爸錢包裡原有幾元?
(6)有的個上底6公分、高28公分的梯形,面積是238平方公分,這個梯形的下底是幾公分?

第6題多加5點 點數

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