3. Решите примеры:

Решение:

• \( (17 - 8) \times 2 = 9 \times 2 = 18 \)
• \( (21 - 6) : 3 = 15 : 3 = 5 \)
• \( 18 - 6 \times 3 = 18 - 18 = 0 \)
• \( 8 \times 3 - 5 = 24 - 5 = 19 \)
• \( 86 - 66 = 20 \)
• \( 49 + 26 = 75 \)
• \( 28 + 11 = 39 \)
• \( 94 - 50 = 44 \)

Ответ: 18, 5, 0, 19, 20, 75, 39, 44.