用1、3、7、8算24点,必须在算式中使用“÷”

Question

需要两种方法

Answer 1

3 ÷ (1 - 7 ÷ 8)=24
8 × (7 - 3 - 1)=24
一共只有这么多种：
1: 3 ÷ (1 - 7 ÷ 8)
2: 3 ÷ (1 - (7 ÷ 8))
3: (7 - (1 + 3)) × 8
4: (7 - 1 - 3) × 8
5: ((7 - 1) - 3) × 8
6: (7 - (3 + 1)) × 8
7: (7 - 3 - 1) × 8
8: ((7 - 3) - 1) × 8
9: 8 × (7 - (1 + 3))
10: 8 × (7 - 1 - 3)
11: 8 × ((7 - 1) - 3)
12: 8 × (7 - (3 + 1))
13: 8 × (7 - 3 - 1)
14: 8 × ((7 - 3) - 1)

Answer 2

3 ÷ (1 - 7 ÷ 8)=24

(7 - 1 - 3) × 8=24本回答被提问者和网友采纳

Answer 3

3×8÷（1^7）=24

Answer 4

3 ÷ (1 - 7 ÷ 8)
3 ÷ (1 - (7 ÷ 8))