Step-by-step reasoning process: The pens and pencils were $1.00 each so 2 * 1 = $2.00. The back pack cost $15 and the pens / pencils cost $2.00 so 15 + 2 = $17.00. His total spent was $32 and he has already spend $17 so 32 - 17 = $15.00. That means he has $15 left to spend on 5 notebooks so the cost would be 15 / 5 = $3.00 each.
The question and answer:
Question and answer: Dan spent $32 buying a new backpack, 1 pack of pens, 1 pack of pencils and 5 multi-subject notebooks for school. If the backpack costs $15 and both the pens and pencils cost $1.00 each, how much did each notebook cost?
The answer is 3

Step-by-step reasoning process: The firewood is made from 500 pieces of firewood / 5 pieces of firewood per log = 100 logs. So the logs are chopped from 100 logs / 4 logs per tree = 25 trees.
The question and answer:
Question and answer: A lumberjack is chopping down trees so he can sell firewood. Each tree he chops produces 4 logs each, and each log is then chopped into 5 pieces of firewood. If the lumberjack has chopped 500 pieces of firewood, how many trees did he chop down?
The answer is 25

Step-by-step reasoning process: Before Cameron broke his hand he could type 5 10 = 50 words in 5 minutes. After he broke his hand he could only type 5 8 = 40 words in 5 minutes. The difference between the number of words he could type in 5 minutes before and after he broke his arm is 50 - 40 = 10 words.
The question and answer:
Question and answer:
Before Cameron broke his right arm, he was able to type 10 words per minute on his phone. After he broke his arm, he had to use his left hand for a while, and he could only type 8 words per minute. What is the difference between the number of words he could type in 5 minutes before and after he broke his arm?
The answer is 10