Free Printable Math Challenge 2 (Unit 2)

1.

Which is a rate?

a)

$\frac{2\ \ feet}{6\ \ feet}$ "2 feet to 6 feet"

b)

$\frac{4\ cups}{8\ cups}$ "4 cups to 8 cups"

c)

$\frac{10\ words}{30\ \sec onds}$ "10 words in 30 seconds"

2.

Which is a UNIT rate?

a)

100 miles / 3 hours

b)

35 miles / 1 hour

c)

70 miles / 2 hours

3.

How do you simplify to find the unit rate?

Fill in the blank:

Divide by the (a) number.

4.

Find the unit rate (how many avocados per bag):

42 avocados in 7 bags

a)

7 avocados/bag

b)

6 avocados/bag

c)

7 bags/avocado

d)

14 avocados/bag

5.

Find the unit rate:

40 slices in 5 pizzas

(a) slices per pizza

6.

Find the unit rate:

18 pints of juice in 9 bottles

(a) pints per bottle

7.

A ratio is a

a)

comparison of two quantitities

b)

a comparison of two quantities with units

c)

a comparison of two quantities with units when the quantity in the denominator is 1

d)

the number in front of the variable in an expression or equation

8.

Fill in the missing value

(a)

9.

For every 1 cup of flour, 5 batches of cookies can be made.

How many batches of cookies can be made with 5 cups of flour?

a)

5 batches of cookies

b)

10 batches of cookies

c)

15 batches of cookies

d)

25 batches of cookies

10.

A unit rate is a

a)

comparison of two quantitities

b)

a comparison of two quantities with units

c)

a comparison of two quantities with units when the quantity in the denominator is 1

d)

the number in front of the variable in an expression of equation

11.

What does the word PER mean?

example: 35 miles PER hour

a)

for every ONE item

b)

for every TWO items

12.

Johnny read 300 words in 6 minutes. At what rate, words per minute, is Jonny reading? ( Since you want words per minute, words goes on top and minutes goes on the bottom)

(a)

13.

A teacher sharpens 108 pencils to distribute to her 27 kindergarten students. How many pencils should each student get? Express as pencils per student. ( $\frac{pencils}{students}$ )

(a)

14.

George finished 1/4 of a level of his computer game in 1/3 of an hour. How many hours will it take him to complete one level?

(a)

15.

Betty makes pies. To make 6 pies, she uses $7\ \frac{1}{2}$ Cups of flour. How many cups of flour are needed to make 1 pie? ( Because you want 1 pie your fraction is $\frac{flour\ }{pie}$ )

a)

$1\ \frac{1}{4}$ cups

b)

45 cups

c)

1/45 cups

d)

1/4 cup

16.

a)

Sue's

b)

Millie's

c)

Tamira's

d)

Creative

17.

a)

Marcus

b)

Joseph

c)

Harper

d)

Nikki

18.

Six tubs of frosting costs $5. How much is it for 1 tub of frosting?

a)

$1 per tub

b)

$8.30 per tub

c)

$0.83 per tub

d)

$0.08 per tub

19.

A piano teacher charges $200 for 12 piano lessons. How much is it for one piano lesson?

a)

$16.67 per lesson

b)

$17 per lesson

c)

$1.67 per lesson

d)

$16 per lesson

20.

A company charges $2.95 for 24 bottles of water. What is the cost per bottle of water?

a)

$0.12 per bottle

b)

$8.14 per bottle

c)

$0.25 per bottle

d)

$1.12 per bottle

21.

Jane is buying coffee. Coffee Shop A sells 30 ounces for $9.95 and Coffee Shop B sells 12 ounces for $3.50. Which coffee shop is cheaper per ounce?

a)

A because they are selling you more coffee in total

b)

A because there unit price is $0.29 per ounce where B is $0.33 per ounce

c)

B because their unit price is $0.29 per ounce and A is $0.33 per ounce

22.

The owner of a city parking garage uses a rate table so that he can look up the parking charges quickly.

What is the unit rate?

a)

$4.50

b)

$6.75

c)

$5.25

d)

$7.50

23.

Kristin was charged $24.75 for parking. How many hours did she park her car at the garage?

a)

5.5 hours

b)

4 hours

c)

4.75 hours

d)

5.25 hours

24.

Which statement about this graph IS NOT true?

a)

The graph compares the ratio of the charged amount to the number of hours.

b)

At 4 hours, the charged amount is $16.

c)

The graph creates a straight line that increases every hour.

d)

At 2 hours, the charged amount is greater than $5.50.

25.

Choose ALL CORRECT statements.

*There may be more than 1.

a)

The graph represents the ratio of weight per pound to cost.

b)

At a weight of 8 pounds the cost is about $10.

c)

The unit rate is $4 per pound.

d)

At 9 pounds, the cost will be between $8 and $9.

26.

A unit rate is a rate in which the numerator or denominator (or both) is one.

a)

TRUE

b)

FALSE

27.

Approximately 33% is what fraction

a)

1/3

b)

1/8

c)

1/5

d)

1/4

28.

20% is what fraction?

a)

1/5

b)

2/5

c)

1/2

d)

1/4

29.

25% is what fraction?

a)

1/2

b)

1/4

c)

1/3

d)

1/5

30.

80% is what fraction?

a)

3/4

b)

4/5

c)

2/3

d)

3/5

31.

90% is what as a fraction?

a)

9/10

b)

4/5

c)

9/100

d)

2/3

32.

70% is what as a fraction?

a)

7/10

b)

2/3

c)

3/4

d)

4/5

33.

If you receive a 45/50 on your test, what is your percent correct?

a)

45%

b)

80%

c)

90%

d)

70%

34.

Which of the following IS NOT equivalent to 3/4?

a)

75%

b)

0.75

c)

15/20

d)

9/16

35.

Write 13/20 as a percent

a)

13%

b)

20%

c)

65%

d)

26%

36.

Write 5% as a decimal.

a)

5

b)

0.5

c)

0.05

d)

0.005

37.

Convert to a decimal
3/4

a)

.25

b)

.34

c)

.75

d)

.44...

38.

Convert to a decimal

1/10

a)

.1

b)

.01

c)

.001

d)

.2

39.

Convert to a decimal

1/2

a)

.5

b)

.25

c)

.45

d)

.12

40.

20% is what fraction?

a)

1/5

b)

2/5

c)

1/2

d)

1/4

41.

Find 250% of 25

(a)

42.

9 is 45% of what number?

(a)

43.

What percent of 60 is 12?

(a)

44.

Find 72% of 325.

(a)

45.

What percent of 40 is 9?

(a)

46.

Percentage is out of...

a)

1

b)

10

c)

100

d)

1000

47.

Match the following decimals to their percentage equivalent

a)

50%

1.

0.50

b)

5%

2.

0.05

c)

105%

3.

1.05

d)

100%

4.

1

e)

3.31%

5.

0.0331

48.

What is 65% as a decimal? (Use a '0' before your decimal)

(a)

49.

What is 10% of 275

a)

27

b)

27.05

c)

2750

d)

27.5

50.

change .3 to a percent

a)

3%

b)

30%

c)

300%

d)

.30%

Math Challenge 2 (Unit 2)

Total questions: 50

Worksheet time: 1hrs 2mins

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