6. 37 + 6 + 14 5+25+18 48 + 7 + 13

Решим примеры:

$$37 + 6 + 14 = 43 + 14 = 57$$

$$5 + 25 + 18 = 30 + 18 = 48$$

$$48 + 7 + 13 = 55 + 13 = 68$$