Ответ:

Решение примеров:

  1. $$5 + 5 + \frac{5}{5} - 3 = 7$$
  2. $$(5 \times 5) + 5 - 5 \div 5 - 4 = 30$$
  3. $$5 \times 5 - 5 + 5 \div 5 = 21 \ne 50$$ $$(5 + 5) \times 5 \div 5 = 10$$ $$55 - 5 \div 5 = 54$$ $$(5 \times 5 \times 5) \div 5 = 25$$
  4. $$5 \times 5 - 5 \div 5 + 6 = 30$$
  5. $$(5+5) \times (5 + 5) + (5 \times 5) = 125$$ $$5 \times 5 \times 5 - 5 = 120$$