To find out how many more tickets Turner needs for the marshmallow shooter prize, we first need to calculate the total number of tickets he currently has.
Turner has earned:
- 17 tickets from the electronic dance game
- 22 tickets from the car racing game
Now, we add these two amounts together:
\[ 17 + 22 = 39 \]
Turner currently has 39 tickets. The prize costs 65 tickets, so we need to determine how many more tickets he needs by subtracting the number of tickets he has from the cost of the prize:
\[ 65 - 39 = 26 \]
Therefore, Turner needs 26 more tickets to redeem the marshmallow shooter prize.