（3,3,3,3）（4,7,9,5）用這兩竄數字分別算24點.誰會?拜託各位大神

題目：

（3,3,3,3）（4,7,9,5）用這兩竄數字分別算24點.誰會?拜託各位大神

解答：

1: 3 × 3 × 3 - 3 2: (3 × 3) × 3 - 3 3: (3 × 3 × 3) - 3 4: ((3 × 3) × 3) - 3 5: (3 × (3 × 3)) - 3 6: 3 × (3 × 3) - 3 1: 4 × 7 - 9 + 5 2: (4 × 7) - 9 + 5 3: (4 × 7 - 9) + 5 4: ((4 × 7) - 9) + 5 5: 4 × 7 -(9 - 5) 6: (4 × 7) - (9 - 5) 7: 4 × 7 + 5 - 9 8: (4 × 7) + 5 - 9 9: (4 × 7 + 5) - 9 10: ((4 × 7) + 5) - 9 11: 4 × 7 +(5 - 9) 12: (4 × 7) + (5 - 9) 13: 4 × 9 -(7 + 5) 14: (4 × 9) - (7 + 5) 15: 4 × 9 - 7 - 5 16: (4 × 9) - 7 - 5 17: (4 × 9 - 7) - 5 18: ((4 × 9) - 7) - 5 19: 4 × 9 -(5 + 7) 20: (4 × 9) - (5 + 7) 21: 4 × 9 - 5 - 7 22: (4 × 9) - 5 - 7 23: (4 × 9 - 5) - 7 24: ((4 × 9) - 5) - 7 25: 7 × 4 - 9 + 5 26: (7 × 4) - 9 + 5 27: (7 × 4 - 9) + 5 28: ((7 × 4) - 9) + 5 29: 7 × 4 -(9 - 5) 30: (7 × 4) - (9 - 5) 31: (7 - 4) × 5 + 9 32: ((7 - 4) × 5) + 9 33: 7 × 4 + 5 - 9 34: (7 × 4) + 5 - 9 35: (7 × 4 + 5) - 9 36: ((7 × 4) + 5) - 9 37: 7 × 4 +(5 - 9) 38: (7 × 4) + (5 - 9) 39: (7 × (9 - 5)) - 4 40: 7 × (9 - 5) - 4 41: 9 - (4 - 7) × 5 42: 9 - ((4 - 7) × 5) 43: 9 × 4 -(7 + 5) 44: (9 × 4) - (7 + 5) 45: 9 × 4 - 7 - 5 46: (9 × 4) - 7 - 5 47: (9 × 4 - 7) - 5 48: ((9 × 4) - 7) - 5 49: 9 × 4 -(5 + 7) 50: (9 × 4) - (5 + 7) 51: 9 × 4 - 5 - 7 52: (9 × 4) - 5 - 7 53: (9 × 4 - 5) - 7 54: ((9 × 4) - 5) - 7 55: 9 + (7 - 4) × 5 56: 9 + ((7 - 4) × 5) 57: 9 - (5 × (4 - 7)) 58: 9 - 5 ×(4 - 7) 59: 9 + (5 × (7 - 4)) 60: 9 + 5 ×(7 - 4) 61: (9 - 5) × 7 - 4 62: ((9 - 5) × 7) - 4 63: 5 + 4 × 7 - 9 64: (5 + 4 × 7) - 9 65: (5 + (4 × 7)) - 9 66: 5 + (4 × 7) - 9 67: 5 + (4 × 7 - 9) 68: 5 + ((4 × 7) - 9) 69: 5 + 7 × 4 - 9 70: (5 + 7 × 4) - 9 71: (5 + (7 × 4)) - 9 72: 5 + (7 × 4) - 9 73: 5 + (7 × 4 - 9) 74: 5 + ((7 × 4) - 9) 75: (5 × (7 - 4)) + 9 76: 5 × (7 - 4) + 9 77: 5 - 9 + 4 × 7 78: (5 - 9) + 4 × 7 79: 5 - 9 +(4 × 7) 80: (5 - 9) + (4 × 7) 81: 5 - (9 - 4 × 7) 82: 5 - (9 - (4 × 7)) 83: 5 - 9 + 7 × 4 84: (5 - 9) + 7 × 4 85: 5 - 9 +(7 × 4) 86: (5 - 9) + (7 × 4) 87: 5 - (9 - 7 × 4) 88: 5 - (9 - (7 × 4))