第2个回答 2017-10-03
1: (5 + 7 - 8) × 62: ((5 + 7) - 8) × 63: (5 + (7 - 8)) × 64: (5 + 7) × (8 - 6)5: (5 - 8 + 7) × 66: ((5 - 8) + 7) × 67: (5 - (8 - 7)) × 68: 6 × (5 + 7 - 8)9: 6 × ((5 + 7) - 8)10: 6 × (5 + (7 - 8))11: 6 × (5 - 8 + 7)12: 6 × ((5 - 8) + 7)13: 6 × (5 - (8 - 7))14: 6 × (7 + 5 - 8)15: 6 × ((7 + 5) - 8)16: 6 × (7 + (5 - 8))17: (6 ÷ (7 - 5)) × 818: 6 ÷ (7 - 5) × 819: 6 ÷ ((7 - 5) ÷ 8)20: 6 × (7 - 8 + 5)21: 6 × ((7 - 8) + 5)22: 6 × (7 - (8 - 5))23: 6 × (8 ÷ (7 - 5))24: 6 × 8 ÷(7 - 5)25: (6 × 8) ÷ (7 - 5)26: (7 + 5 - 8) × 627: ((7 + 5) - 8) × 628: (7 + (5 - 8)) × 629: (7 + 5) × (8 - 6)30: (7 - 8 + 5) × 631: ((7 - 8) + 5) × 632: (7 - (8 - 5)) × 633: (8 - 6) × (5 + 7)34: (8 - 6) × (7 + 5)35: 8 × (6 ÷ (7 - 5))36: 8 × 6 ÷(7 - 5)37: (8 × 6) ÷ (7 - 5)38: (8 ÷ (7 - 5)) × 639: 8 ÷ (7 - 5) × 640: 8 ÷ ((7 - 5) ÷ 6)