Question: Kenny wants to make sure he does more jumping jacks every week than he did the week before. He recorded that last week he did 324 total jumping jacks. On Saturday of this week, he looks at his records and sees that on Sunday he did 34. On Monday he did 20. On Tuesday he skipped a day. On Wednesday he did 123. On Thursday he did 64. On Friday he did 23. How many does he have to do on Saturday to make sure he beats last week's number?
Answer with step-by-step thinking: He has already done 264 this week because 34 + 20 + 123 + 64 + 23 = 264. If he does 60 he will have done as many as last week because 324 - 264 = 60. He has to do 61 on Saturday because 60 + 1 = 61.
So the answer is 61.


Question: Nico borrows 3 books from the library on Monday. On Monday, he reads the first book with a total of 20 pages. On Tuesday, he reads the second book with a total of 12 pages. On Wednesday, he reads the third book. If he has read a total of 51 pages from Monday to Wednesday, how many pages did he read on Wednesday?
Answer with step-by-step thinking: From Monday to Tuesday, Nico reads a total of 20 + 12 = 32 pages. On Wednesday, he read a total of 51 - 32 = 19 pages.
So the answer is 19.


Question: Jessica just got her driving permit. She must complete 50 hours of driving with a parent to get her driver’s license. It takes 20 minutes to drive to school. If she drives to and from school every day, how many school days will it take Jessica to meet the 50-hour driving requirement?
Answer with step-by-step thinking:
Jessica will drive 20 minutes, twice every school day (to and from school), so 20 minutes x 2 trips = 40 minutes each day. There are 60 minutes in 1 hour, so 50 hours of driving x 60 minutes / hour = 3,000 minutes. If you take the 3,000 minutes she needs to drive / 40 minutes driving each day = 75 school days to drive 50 hours.
So the answer is 75.