如果4张牌分别是7,5,10,4,该怎么样算出24点呢?

1:(7 - 5) × 10 + 4
2:((7 - 5) × 10) + 4
3:(10 × (7 - 5)) + 4
4:10 × (7 - 5) + 4
5:4 + (7 - 5) × 10
6:4 + ((7 - 5) × 10)
7:4 - (5 - 7) × 10
8:4 - ((5 - 7) × 10)
9:4 + (10 × (7 - 5))
10:4 + 10 ×(7 - 5)
11:4 - (10 × (5 - 7))
12:4 - 10 ×(5 - 7)