用5,5,7,11算24点
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用5,5,7,11算24点
用分数算,
用分数算,
![用5,5,7,11算24点](/uploads/image/z/4976995-67-5.jpg?t=%E7%94%A85%2C5%2C7%2C11%E7%AE%9724%E7%82%B9)
1:5 × (7 - 11 ÷ 5)
2:5 × (7 - (11 ÷ 5))
3:(7 - 11 ÷ 5) × 5
4:(7 - (11 ÷ 5)) × 5
2:5 × (7 - (11 ÷ 5))
3:(7 - 11 ÷ 5) × 5
4:(7 - (11 ÷ 5)) × 5