On a trip to the movies a family spent $35 on tickets, and another $25 on popcorn. They also spent $10 on drinks. The oldest son spent some money on candy. Altogether the family spent $76. How much did the oldest son spend on candy?
The family spent a total of $35 + $25 + $10 = $<<35+25+10=70>>70 on tickets, popcorn, and drinks.
Therefore, the oldest son spent $76 - $70 = $<<76-70=6>>6 on candy. Answer: \boxed{6}.