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Dividing Fractions — Unit test Answers

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1
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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?

A
–15 degrees
B
–9 degrees
C
–3 degrees
D
3 degrees
2
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What is the quotient?

Question illustration
A
Negative 1 and one-half
Option A
B
Negative StartFraction 3 over 32 EndFraction
Option B
C
StartFraction 3 over 32 EndFraction
Option C
D
1 and one-half
Option D
3

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?

A
938 feet
B
942 feet
C
1,142 feet
D
5,628 feet
4

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?

Question illustration
A
square feet
Option A
B
square feet
Option B
C
square feet
Option C
D
square feet
Option D
5

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

Question illustration
A
-3
B
Negative 4 and two-fifths
Option B
C
3
D
4 and two-fifths
Option D
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?

A
c times 240 = 3
Option A
B
c divided by 240 = 3
Option B
C
240 times 3 = c
Option C
D
240 divided by 3 = c
Option D
7

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

A
(4)($2)
B
(4)($3)
C
(5)($2)
D
(5)($3)
8

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

Question illustration
A
Kari multiplied the compatible numbers –12 and 4.
B
Kari found that the quotient of a negative number and a positive number is negative.
C
Kari found that the quotient of a positive number and a negative number is positive.
D
Kari added the compatible numbers –12 and 4.
9

What is the solution to ?

Question illustration
A
–8
B
–6
C
6
D
8
10

Premium gasoline costs $4.33 per gallon. Noni’s car holds 11.6 gallons of gas. What is the estimated cost of filling the tank of Noni’s car?

A
$12
B
$48
C
$55
D
$60
11

Which point on the number line represents the product ?

Question illustration
A
Point A
B
Point B
C
Point C
D
Point D
12

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?

A
Maggie’s solution is the absolute value of Antwan’s solution.
B
Antwan’s solution is the absolute value of Maggie’s solution.
C
Both solutions are greater than either of the two numbers in the problem.
D
Both solutions are less than either of the two numbers in the problem.
13

Martin measured the lengths of five shoes in his closet. Their lengths were 10.252 inches, 9.894 inches, 10.455 inches, 9.527 inches, and 10.172 inches. Which two estimation techniques will give the same result for the total number of inches for all five shoes?

A
front-end and clustering
B
front-end and rounding to the nearest tenth
C
clustering and rounding to the nearest tenth
D
rounding to the nearest tenth and rounding to the nearest hundredth
14

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?

Question illustration
A
Step 1
B
Step 2
C
Step 3
D
Step 4
15

Dion is laying brick down to make a patio. He plans for the patio to be 8.75 feet by 14.8 feet. He orders enough brick for 135 square feet. Which statement about the amount of brick is correct?

A
Dion estimated correctly by rounding up. He ordered enough brick. The exact area is 129.5 square feet.
B
Dion estimated correctly by rounding down. He ordered enough brick. The exact area is 129.5 square feet.
C
Dion did not estimate correctly by rounding up. He did not order enough brick. The exact area is 129.5 square feet.
D
Dion did not estimate correctly by rounding down. He did not order enough brick. The exact area is 129.5 square feet.

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