20/3小六數學百分率的應用
Quiz by Wai Ting Chau
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3 questions
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- Q11. 陳老師有貼紙50張,其中正方形貼紙佔全部的40%,陳老師有正方形貼紙多少張?50 x ( 1 - 40% )50 x 40%50 x 60%50 x 4030s
- Q22. 耳筒售120元,螢幕保護貼比耳筒便宜30%,螢幕保護貼比耳筒便宜多少元?120 x ( 1- 30% )120 x ( 1 + 30% )120 x 30%30s
- Q33. 雞蛋300隻,壞的雞蛋佔20%,好的雞蛋佔百分之幾?300 x 20%1-20%300 x ( 1 + 20% )300 x ( 1 - 20% )30s