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2,2,6,9和1,5,5,5和5,2,1,
题目详情
2,2,6,9和1,5,5,5和5,2,1,
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答案和解析
(1)
1:(2 + 6 ÷ 9) × 9 2:(2 + (6 ÷ 9)) × 9 3:2 × (9 - 6 + 9) 4:2 × ((9 - 6) + 9) 5:2 × (9 - (6 - 9)) 6:2 × (9 + 9 - 6) 7:2 × ((9 + 9) - 6) 8:2 × (9 + (9 - 6)) 9:(6 ÷ 9 + 2) × 9 10:((6 ÷ 9) + 2) × 9 11:9 × (2 + 6 ÷ 9) 12:9 × (2 + (6 ÷ 9)) 13:(9 - 6 + 9) × 2 14:((9 - 6) + 9) × 2 15:(9 - (6 - 9)) × 2 16:9 × (6 ÷ 9 + 2) 17:9 × ((6 ÷ 9) + 2) 18:(9 + 9 - 6) × 2 19:((9 + 9) - 6) × 2 20:(9 + (9 - 6)) × 2
(2) 5*(5-1/5)=24 5*(5-(1/5))=24 5*(5-1/5)=24
5*(5-(1/5))=24
1:(2 + 6 ÷ 9) × 9 2:(2 + (6 ÷ 9)) × 9 3:2 × (9 - 6 + 9) 4:2 × ((9 - 6) + 9) 5:2 × (9 - (6 - 9)) 6:2 × (9 + 9 - 6) 7:2 × ((9 + 9) - 6) 8:2 × (9 + (9 - 6)) 9:(6 ÷ 9 + 2) × 9 10:((6 ÷ 9) + 2) × 9 11:9 × (2 + 6 ÷ 9) 12:9 × (2 + (6 ÷ 9)) 13:(9 - 6 + 9) × 2 14:((9 - 6) + 9) × 2 15:(9 - (6 - 9)) × 2 16:9 × (6 ÷ 9 + 2) 17:9 × ((6 ÷ 9) + 2) 18:(9 + 9 - 6) × 2 19:((9 + 9) - 6) × 2 20:(9 + (9 - 6)) × 2
(2) 5*(5-1/5)=24 5*(5-(1/5))=24 5*(5-1/5)=24
5*(5-(1/5))=24
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