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20/3小六數學百分率的應用

Quiz by Wai Ting Chau

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Q 1/3
Score 0
1. 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？
29
50 x ( 1 - 40% )
50 x 40%
50 x 60%
50 x 40

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3 questions

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Q1
1. 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 40
30s
Q2
2. 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
Q3
3. 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

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