Question: The teachers divided the group of students into 3 groups of 8. But 2 students left early. How many remain?
Answer: Step-by-step reasoning process: There were initially 3 * 8 = 24. Now there are 24 - 2 = 22.
So the answer is 22.

Question: Jorge bought 24 tickets for $7 each. For purchasing so many, he is given a discount of 50%. How much, in dollars, did he spend on tickets?
Answer: Step-by-step reasoning process: Jorge spent 24 tickets * $7 per ticket = $168 total. After applying the discount, Jorge spent $168 * 0.50 = $84.
So the answer is 84.

Question: Taipei 101 in Taiwan is 1,673 feet tall with 101 floors. Suppose the first to 100th floors have height each equal to 16.5 feet, how high is the 101st floor?
Answer: Step-by-step reasoning process: The total height of the first to 100th floor is 100 x 16.5 = 1650 feet. Hence, the 101st floor is 1673 - 1650 = 23 feet high.
So the answer is 23.

Question: Bert made 12 sandwiches for his trip. On the first day, he ate half of the sandwiches he made. The next day he ate 2 sandwiches less. How many sandwiches does Bert have left after these two days?
Answer:
Step-by-step reasoning process: On the first day, Bert ate 12 / 2 = 6 sandwiches. The second day he ate 6 - 2 = 4 sandwiches. So in total Bert is left with 12 - 6 - 4 = 2 sandwiches.
So the answer is 2.