Free Printable Pre-Algebra 8th Grade Percents Review

1.

Refer to the double number line.
If Kim makes 8 loaves of bread, how many cups of raisins did she use?

a)

4

b)

12

c)

16

d)

24

2.

97 m

80 m

84 m

105 m

a)

97 m

b)

80 m

c)

84 m

d)

105 m

3.

Optimus Prime is using a double number line to determine the amount of raisins he will use for a raisin bread recipe.
If he uses 9 cups of raisins, how many loaves will he make?

a)

4

b)

5

c)

6

d)

7

4.

The ratio of red paint to yellow paint in a mixture is shown in the double number line above. How many teaspoons of yellow paint are in 4 batches?

a)

20

b)

4

c)

12

d)

15

5.

The ratio of red paint to yellow paint in a mixture is shown in the double number line above. How many teaspoons of yellow paint are in 6 of red paint?

a)

10

b)

5

c)

15

d)

7

6.

Which numbers come next on the double number line?

a)

Sugar: 12

Flour: 8

b)

Sugar: 12

Flour: 18

c)

Sugar: 8

Flour: 12

d)

I have no idea!

7.

Complete the ratio tables

a)

10, 15, 20

b)

15, 20, 25

c)

10, 35, 45

d)

10, 15, 30

8.

According to this chart, which one of the following would be the ratio of work miles to total miles?

a)

1/50

b)

1/25

c)

8/25

d)

3/25

9.

How long would it take 12 people to go down the slide?

a)

1 min

b)

2 min

c)

3 min

d)

undeterminable

10.

An eight pack of juice boxes costs $4.79, and a 12 pack of juice boxes cost $6.59. Use this information to calculate the better buy.

a)

8 pack

b)

12 pack

11.

Using TWO number lines to describe equivalent ratios

a)

double number lines

b)

coordinate plane

c)

ratio table

d)

equation

12.

Comparison of 2 quantities using division

a)

ratio

b)

rate

c)

unit rate

d)

unit price

13.

Comparing 2 quantities with a denominator of 1

a)

unit price

b)

unit rate

c)

equivalent ratio

d)

ratio table

14.

Cost per ONE

a)

unit price

b)

unit rate

c)

percent

d)

proportion

15.

Part-to-whole ratio where 100 is the whole

a)

percent

b)

ratio

c)

fraction

d)

unit rate

16.

Compares 2 quantities of DIFFERENT units

a)

rate

b)

ratio

c)

unit rate

d)

unit price

17.

Ratios with the SAME value when simplified

a)

equivalent ratios

b)

unit rates

c)

proportions

d)

unit price

18.

Display of equivalent ratios in rows and columns

a)

ratio table

b)

proportion

c)

unit rate

d)

unit price

19.

EQUAL ratios or rates

a)

Proportions

b)

unit rate

c)

equivalent ratios

d)

double number line

20.

The double number line shows that a water park allows 18 people to go down their giant water slide in 3 minutes. How long would it take 12 people to go down the slide?

a)

1 minute

b)

2 minutes

c)

3 minutes

d)

No way to find out.

21.

There are 50 cookies and 35 cupcakes leftover at a bake sale. What is the ratio of cookies to cupcakes?

Your answer must be in simplest form.

a)

10:7

b)

7:10

c)

35:50

d)

50:35

22.

Use the ratio table to determine how many pencils there will be in 8 boxes.

a)

20 pencils

b)

24 pencils

c)

96 pencils

d)

48 pencils

23.

You spend $40 on 5 pounds of concrete. How much would would it cost for 7 pounds of concrete?

a)

$56

b)

$50

c)

$35

d)

$42

24.

What would be the ratio of red apples to green apples if there were double the amount of apples?

a)

6 red apples to 8 green apples

b)

8 red apples to 6 green apples

c)

4 red apples to 3 green apples

d)

3 green apples to 4 red apples

25.

In a certain apartment building, the ratio of tenants to cars is 3:5. If there are 30 tenants, how many cars are there?

a)

35

b)

60

c)

18

d)

50

26.

If there are 5 boys to 7 girls, how many girls would there be if the number of boys increased to 20?

a)

35 girls

b)

28 girls

c)

24 girls

d)

30 girls

27.

For 6 people to enter the park, it cost $36. How much would it cost for 9 people?

a)

$45.50

b)

$48.00

c)

$54.00

d)

$52.50

28.

A recipe that will make 3 pies calls for 7 cups of flour. Determine how many pies can be made with 28 cups of flour.

a)

40 pies

b)

4 pies

c)

12 pies

d)

10 pies

29.

Daisy sour cream is $1.68 for 8 oz.

Kraft sour cream $2.08 for 16 oz.

Find the unit price of each and choose the better deal.

a)

Daisy

b)

Kraft

30.

Are the two ratios equivalent?

3 : 10 and 9 : 20

a)

Yes

b)

No

31.

You know that 12 inches = 1 foot. Convert 60 inches to feet.

a)

720 feet

b)

5 feet

c)

5 inches

d)

72 feet

32.

You know 16 cups = 1 gallon. Convert 3.5 gallons into cups.

a)

56 cups

b)

0.21875 cups

c)

19.5 cups

d)

48 cups

33.

Convert 17 inches to centimeters. (1 in = 2.54 cm)

a)

43.15 cm

b)

204 cm

c)

6.72 cm

d)

1.42 cm

34.

Elijah earn $200 for 8 hours of work. What is the unit rate (in dollars per hour)?

a)

$50 per hour

b)

$12 per hour

c)

$192 per hour

d)

$25 per hour

35.

7 students were on their chromebook. 4 were doing their work and 3 were playing games. What is the ratio of students doing their work to students playing games?

a)

2:6

b)

5:6

c)

3:4

d)

4:3

36.

In as Algebra 1 class there are 21 students in total. 18 of them did their homework. What is the ratio of students that did their homework to those that did not? Simplify your answer.

a)

3/18

b)

18/3

c)

1/6

d)

6/1

37.

Which is the better buy? a 12 pack of Coke for $3.50 or a six pack of Coke for $1.80? (Hint: find the unit rate of both)

a)

The 12 pack of Coke

b)

The 6 pack of Coke

c)

Neither

d)

They are the same

38.

If Justin can type 408 words in 4 minutes, what is the unit rate of words to minutes?

a)

102 words/1 minute

b)

100 words/ 1 minute

c)

400 words/ 1 minute

d)

412 words/1 minute

39.

Which of the following is the correct set-up to convert 2 qt/min to gal/sec?

a)

$\frac{2\ qt}{1\ \min}\ \times\frac{4\ qt}{1\ gal}\times\frac{60\ \sec}{1\ \min}$

b)

$\frac{2\ qt}{1\ \min}\ \times\frac{1\ gal}{4\ qt}\times\frac{1\ \min}{60\ \sec}$

c)

$\frac{2\ qt}{1\ \min}\ \times\frac{1\ gal}{4\ qt}$

d)

$\frac{2\ qt}{1\ \min}\ \times\frac{1\ gal}{4\ qt}\times\frac{60\ \sec}{1\ \min}$

40.

Convert 60 ft/s to mi/h. (5280 ft = 1 mi and 3600 sec = 1hr)

a)

60 mi/h

b)

68 mi/h

c)

9.7 mi/h

d)

40.9 mi/h

41.

Which conversion factor will allow you to convert 2.2 kg to lbs? $1\ kg\ \approx2.205\ lbs$

a)

$\frac{2.2\ kg}{2.205\ lbs}$

b)

$\frac{1\ lb}{2.2\ kg}$

c)

$\frac{2.205\ kg}{1\ lb}$

d)

$\frac{2.205\ lbs}{1\ kg}$

42.

What is the ratio of shaded squares to not shaded squares?

a)

10:5

b)

10:6

c)

6:10

d)

10:18

43.

What is 10% of $250

a)

$2.50

b)

$25

c)

$250

d)

$2500

44.

How much you can save?

a)

$25

b)

$50

c)

$100

d)

$125

45.

Eliza bought a meal that cost $ 12.00. She tipped the waiter 25% of that amount. How much was the tip?

a)

$ 15.00

b)

$ 12.25

c)

$3.00

d)

$4.00

46.

My class size has increased by 35% this year. I had 20 students last year, how many do I have now?

a)

23

b)

25

c)

27

d)

29

47.

a)

1760

b)

2400

c)

240

d)

17600

48.

a)

63

b)

630

c)

483

d)

48.3

49.

a)

22.8 miles

b)

17.2 miles

c)

57.2 miles

d)

83 miles

50.

a)

19080

b)

16920

c)

17400

d)

1080

51.

34% of what number is 51?

a)

69

b)

71

c)

150

d)

196

52.

8 is what percent of 20?

a)

40%

b)

20%

c)

250%

d)

4%

53.

30 is what percent of 40?

a)

75%

b)

50%

c)

25%

d)

100%

54.

What is 20% of 75?

a)

15

b)

60

c)

6

d)

1.5

55.

On the beach at SPI, there are 20 different places to get food. 25 percent of them are ice cream shops. How many ice cream shops are there?

a)

4

b)

5

c)

7

d)

8

56.

Sam received $125 for his birthday. He spent $85 at the store. What percent of his birthday money did he spend at the store?

a)

70%

b)

72%

c)

68%

d)

65%

57.

There are 35 boys out for football. This is about 5% of the total enrollment. How many total kids are in the school?

a)

700

b)

600

c)

750

d)

650

58.

Sal's bank account balance increased by 75% last month. If he started the month with $2,500, how much does he have now?

a)

$4,375

b)

$3,125

c)

$5,000

d)

$4,500

59.

In 2000, your favorite candy cost $1.25 a pack. Now it costs $2.00 a pack. What was the relative change in the price over that time?

a)

60%

b)

75%

c)

50%

d)

40%

60.

Car B costs $31,000. This is 23% more than car A costs. What is the price of car A, to the nearest dollar?

a)

$25,203

b)

$23,870

c)

$38,130

d)

$8,000

61.

A rat used to take 350 seconds to complete a maze. He has improved his time by 16%, how long does it take him now, to the nearest second? (Remember, this is a percent decrease from 350 sec.)

a)

294 sec

b)

417 sec

c)

302 sec

d)

334 sec

62.

B = 35. A is 25% more than B. A = ?

a)

78.75

b)

160

c)

28

d)

43.75

63.

In 2019, you earned $35,000 and paid taxes at a rate of 8%. Your earnings in 2020 increased by 25% and your tax rate increased to 10%. How much did you pay in taxes in 2020?

a)

$4,375

b)

$3,500

c)

$2,800

d)

$2,500

64.

What percent of 96 is 88?

a)

91.7%

b)

109%

c)

84.5%

d)

88%

65.

Reduce 360 by 10%

a)

342

b)

324

c)

328

d)

300

66.

Decrease 500 by 30%

a)

470

b)

350

c)

499.70

d)

150

67.

Kate scored 54 out of 60 in her maths exam. What is this as a percent?

a)

0.9

b)

54%

c)

90%

d)

60%

68.

There are 80 apples in a carton of apples. There are 24 red apples and the rest of the apples are green. What percentage of the apples are green?

a)

60%

b)

70%

c)

80%

d)

85%

69.

200 children attended the school play. Of the total attendance, 120 were girls. What percent of girls attended the school play?

a)

.06%

b)

6%

c)

60%

d)

40%

70.

Solve the equation for x:

a)

x = -1/4

b)

x = 1/3

c)

x = -3/4

d)

x = 3/4

71.

Pat needs 14 sticks of pepperoni to make 28 pizzas. How many sticks of pepperoni are needed to make 36 pizzas?

a)

15 pizzas

b)

252 sticks

c)

18 sticks

d)

18 pizzas

72.

$Simplify\ the\ ratio\ \frac{8\ yds}{18\ ft}$

a)

$\frac{4}{9}$

b)

$\frac{4}{3}$

c)

$\frac{4}{27}$

d)

$\frac{8}{18}$

73.

Corresponding angles in similar figures are congruent

a)

True

b)

False

74.

Corresponding sides in similar figures are proportional

a)

True

b)

False

75.

The triangles are similar. Solve for x.

a)

7

b)

2

c)

4

d)

8

76.

The triangles are similar. Solve for x.

a)

34

b)

26

c)

30

d)

16

77.

In a similarity statement, order matters.

a)

True

b)

False

78.

A triangle’s angle measures are in the extended ratio of 2 : 4 : 9. Find the measures of the angles.

a)

20^o, 40^o, 90^o

b)

24^o, 48^o, 108^o

c)

24^o, 32^o, 124^o

d)

20^o, 40^o, 100^o

79.

A ratio is

a)

comparing a bunch of numbers

b)

a comparison between 2 quantities

c)

an estimation of an amount

d)

a variable

80.

A proportion is a

a)

ratio statement

b)

an "if-then" statement

c)

a statement of 2 ratios

d)

a comparison

81.

All of the following are proper representations of a ratio EXCEPT

a)

a/b

b)

a to b

c)

a:b

d)

a over b

82.

To solve for missing info in a proportion statement you must first

a)

Cross multiply

b)

Divide everything

c)

Get rid of variables

d)

Guess

83.

Cindy’s job is to check computer printers for defects. Out of 420 printers she has to check, only 3 of the first 84 have been defective. Using this information, what is the best prediction of the TOTAL NUMBER OF DEFECTIVE PRINTERS?(Set up your ratio)

(a)

84.

If a class has 14 redheads, 8 brunettes, and 6 blondes- What is the REDUCED ratio of redheads to brunettes?

a)

4:7

b)

14:8

c)

8:14

d)

7:4

85.

1. The laptop was marked down from $895 to $720.

(please input answers as the %,increase or decrease) i.e. 17%,decrease

(a)

86.

2. In the 2006 season, Tom Brady threw for 3,529 yards. In the 2007 season, he threw for 2,806 yards.
(please input answers as the %,increase or decrease) i.e. 17%,decrease

(a)

87.

3. The Smith's home was worth $102,500 in 2013 and $111,000 in 2014.
(please input answers as the %,increase or decrease) i.e. 17%,decrease

(a)

88.

4.Brandon bought a pair of sneakers for $55 that had a regular price of $90.

(please input answers as the %,increase or decrease) i.e. 17%,decrease

(a)

89.

5. During the winter, a certain grill was marked at $85. In June, the price was changed to $110.50.
(please input answers as the %,increase or decrease) i.e. 17%,decrease

(a)

90.

6. Sarah started her diet on January 1st at 198 pounds. By the end of the year, she weighed 112 pounds.
(please input answers as the %,increase or decrease) i.e. 17%,decrease

(a)

91.

7. Nate scored a 990 on his first attempt on the SAT and a 1140 on his second attempt.

(a)

92.

8. There were 795 runners registered for the marathon in 2015 and 1,208 in 2016.
(please input answers as the %,increase or decrease) i.e. 17%,decrease

(a)

93.

9. The basic model of a car retails for $24,595. The platinum model of the same car retails for $32,900.

(a)

94.

10. The average high temperature was 86° in August then 74° in September.

(a)

95.

11. This year's school enrollment at Brookhaven Middle School is 1,524 students. Last year, the enrollment was 1,398 students.

(a)

96.

12. Marshall's dog weighs 82 pounds. The vet said 75 pounds would be more ideal for his size. What percent of his weight does he need to lose?
(please input answers as the %,increase or decrease) i.e. 17%,decrease

(a)

97.

What number is 20% of 102?

a)

204

b)

122.4

c)

20.4

d)

20

98.

What is 40% of 230?

a)

92

b)

9200

c)

9.20

d)

575

99.

What is 23% of 65?

a)

14.95

b)

15.95

c)

16

d)

13.75

100.

12% of the cars that went through the car wash were blue. If 75 cars went through the car wash, how many of the cars were blue?

a)

900

b)

90

c)

0.09

d)

9

101.

Pridgeon Stadium has a capacity of 11,000. At the time of kickoff, 60% of the stadium was full. How many fans were in the stadium?

a)

5,500

b)

6,600

c)

660

d)

1,100

102.

The arena at the Berry Center holds 9,500 people. During one of the graduation ceremonies, 95% of the seats were occupied. How many people attended the ceremony?

a)

950

b)

8,550

c)

9,025

d)

9,500

103.

The middletown Zoo has 130 different exhibits. Of those 130 exhibits, 30% of them contain birds. How many exhibits contain birds?

a)

49

b)

39

c)

60

d)

25

104.

50 is what percent of 20?

a)

40%

b)

25%

c)

2.5%

d)

4%

105.

78 is what percent of 450?

a)

5%

b)

.17

c)

17%

d)

18%

106.

The movie theater has 250 seats. 225 seats were sold for the current showing. What percent of seats are empty?

a)

10%

b)

20%

c)

80%

d)

90%

107.

Eric earned 60 points on his last test. If there were 75 possible points, what was his percent grade?

a)

20%

b)

40%

c)

60%

d)

80%

108.

Shirley spelled 12 of her 15 spelling words correctly on the test. What percent grade did Shirley get on the test?

a)

40%

b)

50%

c)

80%

d)

60%

109.

There are 4 milk chocolates to every 2 dark in a box of chocolates. There are 34 dark chocolates in the box. How many milk chocolates are in the box?

a)

68

b)

86

c)

17

d)

34

110.

A mineral bottle is ¾ full and Denise drank 80% of the water. Find the percentage of the water left in the bottle.

(a)

111.

If a water tank that could hold 45 gallons of water is replaced by a tank that can hold 25% more, what is the capacity of the new tank?

a)

11.25 gallons

b)

70 gallons

c)

56.25 gallons

d)

33.75 gallons

112.

Jillian baked 2 batches of cupcakes in

$\frac{1}{4}$ of an hour. How many batches will she cook in one hour.

(a)

113.

Hannah completed

\frac{1}{5}

of a worksheet in

\frac{1}{4}

of an hour. How much of a worksheet will she complete in one hour?

(a)

114.

Miguel ate

\frac{1}{4}

of a pizza in

\frac{1}{2}

of an hour. How much pizza would Miguel eat in one hour?

(a)

115.

In 1/2 of an hour, Jefferey walked 3/4 of a mile. How long will it take Jefferey to walk one mile?

(a)

116.

Jack walked $\frac{2}{3}$ of a mile in $\frac{1}{2}$ of an hour. How long will it take Jack to walk one mile?

(a)

117.

Tyler can rake 1/3 of a yard in 1/5 of an hour. How many yards can he rake in one hour?

(a)

118.

Katy finished 1/3 of her bag of Halloween candy in 3 days. How many days would it take for her to finish the entire bag of candy?

(a)

119.

A delivery truck traveled 1/4 of it's route in 2 hours. How much of the route was traveled in one hour?

(a)

120.

It took Jamie 3/4 of an hour to complete 1/4 of a puzzle. How many puzzles can she complete in one hour?

(a)

121.

Jillian baked 2 batches of cupcakes in 1/4 of an hour. How long did it take to bake one batch?

(a)

122.

Hannah completed 1/5 of a worksheet in 1/4 of an hour. How long will it take her to finish one worksheet?

(a)

123.

Miguel ate 1/4 of a pizza in 1/2 of an hour. How long will it take Miguel to eat one pizza?

(a)

124.

In 1/2 of an hour, Jefferey walked 3/4 of a mile. How many miles would Jefferey walk in one hour?

(a)

125.

Jack walked 2/3 of a mile in 1/2 of an hour. How far will Jack walk in one hour?

(a)

126.

Angie painted 1/20 of a fence in 1/2 an hour. How long will it take Angie to paint one fence?

(a)

Pre-Algebra 8th Grade Percents Review

Total questions: 126

Worksheet time: 9hrs 37mins

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