2. 8+6-9 9-7+8 12-8+7 14-6+5 16-(11-3) 12-(12-7)

Решение:

• \[ 8 + 6 - 9 = 14 - 9 = 5 \]
• \[ 9 - 7 + 8 = 2 + 8 = 10 \]
• \[ 12 - 8 + 7 = 4 + 7 = 11 \]
• \[ 14 - 6 + 5 = 8 + 5 = 13 \]
• \[ 16 - (11 - 3) = 16 - 8 = 8 \]
• \[ 12 - (12 - 7) = 12 - 5 = 7 \]

Ответ: 5, 10, 11, 13, 8, 7