题目

用3、6、8、10这四个数算出2.4,算式是（ ）

提问时间：2021-04-05

答案

1: 3 × (6 - 8 + 10)
2: 3 × ((6 - 8) + 10)
3: 3 × (6 - (8 - 10))
4: 3 × (6 + 10 - 8)
5: 3 × ((6 + 10) - 8)
6: 3 × (6 + (10 - 8))
7: 3 × (10 + 6 - 8)
8: 3 × ((10 + 6) - 8)
9: 3 × (10 + (6 - 8))
10: 3 × (10 - 8 + 6)
11: 3 × ((10 - 8) + 6)
12: 3 × (10 - (8 - 6))
13: (6 - 8 + 10) × 3
14: ((6 - 8) + 10) × 3
15: (6 - (8 - 10)) × 3
16: (6 + 10 - 8) × 3
17: ((6 + 10) - 8) × 3
18: (6 + (10 - 8)) × 3
19: (10 + 6 - 8) × 3
20: ((10 + 6) - 8) × 3
21: (10 + (6 - 8)) × 3
22: (10 - 8 + 6) × 3
23: ((10 - 8) + 6) × 3
24: (10 - (8 - 6)) × 3