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1: (7 - 1) ÷ 3 × 12=24
2: ((7 - 1) ÷ 3) × 12=24
3: (7 - 1) ÷ (3 ÷ 12)=24
4: (7 - 1) × 12 ÷ 3=24
5: ((7 - 1) × 12) ÷ 3=24
6: (7 - 1) × (12 ÷ 3)=24
7: 12 ÷ 3 ×(7 - 1)=24
8: (12 ÷ 3) × (7 - 1)=24
9: 12 ÷ (3 ÷ (7 - 1))=24
10: (12 × (7 - 1)) ÷ 3=24
11: 12 × (7 - 1) ÷ 3=24
12: 12 × ((7 - 1) ÷ 3)=24
2: ((7 - 1) ÷ 3) × 12=24
3: (7 - 1) ÷ (3 ÷ 12)=24
4: (7 - 1) × 12 ÷ 3=24
5: ((7 - 1) × 12) ÷ 3=24
6: (7 - 1) × (12 ÷ 3)=24
7: 12 ÷ 3 ×(7 - 1)=24
8: (12 ÷ 3) × (7 - 1)=24
9: 12 ÷ (3 ÷ (7 - 1))=24
10: (12 × (7 - 1)) ÷ 3=24
11: 12 × (7 - 1) ÷ 3=24
12: 12 × ((7 - 1) ÷ 3)=24
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