4,4,7,7怎么算24点么
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4,4,7,7怎么算24点么
4,4,7,7怎么算24点么
4,4,7,7怎么算24点么
1:(4 - 4 ÷ 7) × 7
2:(4 - (4 ÷ 7)) × 7
3:7 × (4 - 4 ÷ 7)
4:7 × (4 - (4 ÷ 7))
4*7-4
1: (4 - 4 ÷ 7) × 7
2: [4 - (4 ÷ 7)]× 7
3: 7 × (4 - 4 ÷ 7)
4: 7 × [4 - (4 ÷ 7)]
1: 7 × (4 - 4 ÷ 7)
2: 7 × (4 - (4 ÷ 7))
3: (4 - 4 ÷ 7) × 7
4: (4 - (4 ÷ 7)) × 7