Question: Ellie takes her little brother down to the pond to teach him how to skip stones. After he takes his first throw, she gives him pointers to improve his technique. His second throw skips two more times across the water than his first. His third throw skips twice as many times as his second. His fourth throw skips 3 fewer times than his third throw. His fifth throw skips one more time than the fourth throw. If his fifth throw skipped 8 times across the water, how many skips did he make in total between all of his throws?
Answer: His fourth throw made 8 - 1 = 7 skips. His third throw made 7 + 3 = 10 skips. His second throw made 10 / 2 = 5 skips. His first throw made 5 - 2 = 3 skips. The total number of skips is 8 + 7 + 10 + 5 + 3 = 33 skips. The answer is 33.

Question: Bart fills out surveys to earn money. He receives $0.2 for every question he answers in the survey. Each survey has 10 questions. On Monday he finished 3 surveys, and on Tuesday 4 surveys. How much money did he earn during these two days?
Answer: On Monday and Tuesday Bart finished 3 + 4 = 7 surveys. Each survey has 10 questions, so he answered 10 * 7 = 70 questions. Bart gets paid $0.2 for each questions, so he earned 70 * $0.2 = $14. The answer is 14.

Question: Mr. Smith had 32 markers in his classroom. He buys new boxes of markers that have 9 markers in each box. Now, he has 86 markers. How many new boxes did Mr. Smith buy?
Answer: Mr. Smith bought 86 markers - 32 markers = 54 markers. Mr. Smith bought 54 markers ÷ 9 markers / box = 6 new boxes. The answer is 6.

Question: Jenny wants to read 3 books in the next 10 days. She can read 100 words per hour. If the first book has 200 words, the second book has 400 words, and the third book has 300 words, how many minutes per day, on average, should she spend reading?
Answer:
She wants to read 200 + 400 + 300 = 900 pages total. She needs to spend 900 / 100 = 9 hours reading in the next three weeks. In minutes, she will need to spend 9 * 60 = 540 minutes. Thus, she should spend 540 minutes / 10 days = 54 minutes per day reading. The answer is 54.