Unit Test — Unit test

Question 1

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

Revolt · Accepted Answer

–21.8 + 18.3

Question 2

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?

Revolt · Accepted Answer

5 feet below sea level

Question 3

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

Revolt · Accepted Answer

(4)($3)

Question 4

How do the expressions and compare when they are evaluated?

Revolt · Accepted Answer

They have the same value and the same sign.

Question 5

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?

Revolt · Accepted Answer

Antwan’s solution is the absolute value of Maggie’s solution.

Question 6

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?

Revolt · Accepted Answer

240 divided by 3 = c

Question 7

Which expression is modeled by this arrangement of tiles?

Revolt · Accepted Answer

30 divided by 3

Question 8

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?

Revolt · Accepted Answer

Step 4

Question 9

What is the product of and ?

Revolt · Accepted Answer

Negative StartFraction 9 over 14 EndFraction

Question 10

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?

Revolt · Accepted Answer

StartFraction 37 over 2 EndFraction divided by StartFraction 17 over 4 EndFraction

Unit Test — Unit test Answers

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