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7,5,9,10能凑成24吗

题目详情
7,5,9,10能凑成24吗
▼优质解答
答案和解析
1: (5 × (10 - 7)) + 9
2: 5 × (10 - 7) + 9
3: (10 - 7) × 5 + 9
4: ((10 - 7) × 5) + 9
5: 9 + (5 × (10 - 7))
6: 9 + 5 ×(10 - 7)
7: 9 - (5 × (7 - 10))
8: 9 - 5 ×(7 - 10)
9: 9 + (10 - 7) × 5
10: 9 + ((10 - 7) × 5)
11: 9 - (7 - 10) × 5
12: 9 - ((7 - 10) × 5)