Unit Test — Unit test Answers

Which expression is equivalent to –21.8 – (–18.3)?

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?

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

How do the expressions and compare when they are evaluated?

Antwan determines the distance between the points –7 and 2 on a numberline. Maggie determines the difference between the numbers –7 and 2. How are Antwan’s and Maggie’s solutions related?

The Nash family spent a total of $240 on a hotel room for 3 nights. Which equation can be used to find c, the average cost per night for the hotel room?

Which expression is modeled by this arrangement of tiles?

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?

What is the product of and ?

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?

The temperature fell from 0 to below 0 in hours. What was the temperature change per hour?

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

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

A nut-raisin mix costs $5.26 per pound. Rashid buys 15.5 pounds of the mix for a party. Rashid’s estimated cost of the nut-raisin mix is