1. A group of hikers climbed from Salt Flats (elevation -55 feet) to Talon Bluff (elevation 620 feet). What is the difference in elevation between Talon Bluff and Salt Flats?

2. One morning, the temperature was 5 degrees Fahrenheit below zero. By noon the temperature rose 20 degrees Fahrenheit and then dropped 8 degrees Fahrenheit by the evening. What was the evening temperature?

3. The price of a share of stock for company XYZ at the beginning of the week was $24.75 Over the next five days, the stock gained $2.50 on Monday, lost $3.25 on Tuesday, lost $0.75 on Wednesday, gained $1.25 on Thursday, and gained $4.75 on Friday. What was the price of the stock at the end of the day on Friday?

4. Jenny got out of bed at 8:10 a.m. and returned home from school at 4:45 p.m. About how many hours elapsed between the time she got out of bed and the time she returned home from school?

5. Mrs. Smith thought that the refrigerator was not cooling properly. She checked the temperature every hour one day, beginning at 9:00 a.m. This chart shows the changes in temperature she recorded. If the beginning temperature in the refrigerator was 65 degrees Fahrenheit, what was the ending temperature at 3:00 p.m. TimeTemperature Change in degrees Fahrenheit 10:00 a.m.- 6 11:00 a.m.+ 4 12:00 p.m.- 2 1:00 p.m.- 1 2:00 p.m.+ 3 3:00 p.m.+ 4

6. The total length of all the songs on a playlist is about 70 minutes. Each song is between 3 and 5 minutes long. Which is a reasonable number of songs that could be on the playlist?

7. The temperature was 98 degrees Fahrenheit at 5 p.m. The temperature decreased by about 5 degrees Fahrenheit per hour after 5 p.m. What was the temperature at 7 p.m.?