Topic Test Answers

Which expression is modeled by this arrangement of tiles?

Helene, a hiker, starts at an elevation of 27 feet above sea level and descends 32 feet during her hike to base camp. Which describes the elevation of base camp?

Three investors own a company. One partner owns of the company, while the second partner owns of the company. How much does the third partner own?

Water flowed out of a tank at a steady rate. A total of gallons flowed out of the tank in hours. Which expression determines the quantity of water leaving the tank per hour?

Jillian is using integer tiles to add . She uses the steps below.Step 1Step 2Step 3Step 4Jillian has made an error. In which step does it occur?

Vicky records the low temperature for three consecutive days. Between the first and second days the temperature increased 6 degrees. Between the second and third days the temperature decreased 3 degrees. On the third day the low temperature was –6º. What was the low temperature on the first day?

The position of a swimmer below sea level is represented by –5 meters. The diver descends an additional 3 meters below sea level. Which expression describes the new position of the diver?

Kari estimated the quotient of to be –8. Which best describes her error?

Which tiles should be added to the model below to make zero?

Kale is hiking 2,345 feet above sea level. The peak of the mountain he is climbing is 3,283 feet above sea level. What is the vertical distance between Kale and the mountain peak?

Bruno uses a piece of wrapping paper with dimensions feet by 3 feet to wrap a gift. What is the total area of the paper used to wrap the gift?

Which should be the first step in solving the equation ?

Before sunrise, the temperature was 22.4°F below zero. By noon, it had risen 12.8°F. What expression can be used to find the temperature at noon?

Diego buys 4.25 pounds of mushrooms. Each pound costs $2.99. Which expression gives the best estimate of the cost of the mushrooms?

Leonardo is solving the equation . His work is shown. Where is his error?