用1,5,5,5算24点

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用1,5,5,5算24点

用1,5,5,5算24点
用1,5,5,5算24点

用1,5,5,5算24点
1:(5 - 1 ÷ 5) × 5
2:(5 - (1 ÷ 5)) × 5
3:5 × (5 - 1 ÷ 5)
4:5 × (5 - (1 ÷ 5))

1: 5 × (5 - 1 ÷ 5)
2: 5 × (5 - (1 ÷ 5))
3: (5 - 1 ÷ 5) × 5
4: (5 - (1 ÷ 5)) × 5

[5-(1/5)]*5=24

(1/5-5)*(-5)=