6-10 小6數學問題:－線上遊戲排行榜2013/2014,進擊的巨人線上看,candy crush saga外掛,正妹寫真三圍

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6-10 小6數學問題

Dec 25th 2013, 15:42

第一次跟第二次平均 62 分
→ 62乘2 = 124 ；124 - 60 = 64 64=第二次成績
加第三次的平均是 64 分
→ 64乘3 = 192 ；192 - 124 = 68 68=第三次成績
加第四次的平均是 66 分
→ 66乘4 = 264 ；264 - 192 = 72 72=第四次成績
加第五次的平均是 68 分
→ 68乘5 = 340 ；340 - 264 = 76 76=第五次成績

答案就是 76 分囉~

參考資料自己

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