来算24点的高手 在线等

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