Решите уравнения: 13 − □ = 7; 12 − □ = 5; 9 + □ = 18; 8 + □ = 16; 5 + □ = 14; 4 + □ = 11.

1. \(13 - \square = 7\)
   \(\square = 13 - 7 = 6\)
2. \(12 - \square = 5\)
   \(\square = 12 - 5 = 7\)
3. \(9 + \square = 18\)
   \(\square = 18 - 9 = 9\)
4. \(8 + \square = 16\)
   \(\square = 16 - 8 = 8\)
5. \(5 + \square = 14\)
   \(\square = 14 - 5 = 9\)
6. \(4 + \square = 11\)
   \(\square = 11 - 4 = 7\)

Ответ: 6; 7; 9; 8; 9; 7.