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