Question

5 7 9 12 算24点 2 2 10 11算24点

Answer 1

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