What was the question for this implicit rationale, and corresponding answer?
Frank bakes 2 * 12 = 24 cookies per day. Frank bakes a total of 24 * 6 = 144 cookies. Frank eats 1 * 6 = 6 cookies. After Ted leaves, there are 144 - 6 - 4 = 134.
 The answer: 134
The question: Frank bakes two trays of cookies per day, for 6 days. Frank eats one cookie each day to make sure they taste good. Ted comes over on the sixth day and eats 4 cookies. If each tray makes 12 cookies, how many cookies are left when Ted leaves?