Free Printable Number System Review

1.

What is the Greatest Common Factor (GCF) of 12 and 42 ?

a)

3

b)

4

c)

6

d)

12

2.

What is the Least Common Multiple(LCM) of 5 and 20?

a)

5

b)

10

c)

20

d)

40

3.

Compute.

a)

1/2

b)

5/3

c)

5/6

d)

3/10

4.

$1,476\ \div18\ =$

a)

68

b)

72

c)

82

d)

96

5.

Refer to the October calendar. Jay’s trash is picked up on days that are multiples of 5 and the paper is delivered on days that are multiples of three. How many dates in October is the trash picked up on the same day the paper is delivered?

a)

2

b)

4

c)

7

d)

14

6.

A floor is 14.7 feet by 13 feet. What is the area of the room? (hint: Area = length x width)

a)

$191.1\ ft^2$

b)

$195.2\ ft^2$

c)

$197.1\ ft^2$

d)

$211.1\ ft^2$

7.

There are 1,775 pennies in Jay’s jar. If 25 pennies are needed to fill a bag, how many whole bags can Jay fill?

a)

65

b)

71

c)

74

d)

81

8.

The spaceship travels around the sun at a speed of 12.6 miles per second. How far will it travel in 45 seconds?

a)

457 miles

b)

477 miles

c)

467 miles

d)

567 miles

9.

Use the chart to answer the following question.

What was the difference between John and Bob in the chart?

a)

0.16 sec.

b)

0.17 sec.

c)

0.18 sec.

d)

0.28 sec.

10.

Use the chart to answer the following question.

How much time did it take Ally, Jeff & Kate all together?

a)

151.67 sec.

b)

162.87 sec.

c)

162.67 sec.

d)

164.57 sec.

11.

The height of dachshunds is usually 1⁄3 their length. If Mollie is 20 inches long, how tall is she?

a)

5 1/3 inches tall

b)

6 1/4 inches tall

c)

6 2/3 inches tall

d)

6 3/4 inches tall

12.

For which number will a list of its factors include 7?

a)

24

b)

26

c)

28

d)

30

13.

There are 14.25 carpet tiles lined up on the floor and each on is 2.5 feet long. How long is the line of carpet tiles?

a)

26.723 feet long

b)

26.525 feet long

c)

30.630 feet long

d)

36.625 feet long

14.

You are taking a bus trip from LaGrange to New Orleans. You will have to drive 491.2 miles.

The bus gets 8 miles per gallon. How many gallons of gas will the bus use driving from LaGrange to

New Orleans?

a)

51.4 gallons

b)

61.4 gallons

c)

65.4 gallons

d)

71.4 gallons

15.

Is 2(9 + 12) = 42? Why or why not?

a)

Yes, because 2• 9 = 18; and 18 + 18 = 42

b)

Yes, because 2• 9 = 18; and 2 • 12 = 24; and 18 + 24 = 42

c)

No, because 2• 9 = 18; and 18 + 12 = 30

d)

No, because 2• 9 = 18; and 9 • 12 = 108; and 18 + 108 = 126

16.

Which number is both a multiple of 6 and a factor of 60?

a)

10

b)

12

c)

15

d)

20

17.

Which number sentence is represents what is in the model?

a)

$12\div2=6$

b)

$10\div1=10$

c)

$2\ \frac{1}{2}\div\frac{1}{2}=5$

d)

$\frac{12}{4\ }\div\frac{2}{4}=6$

18.

What is the LCM of 6 and 8?

a)

12

b)

18

c)

24

d)

32

19.

Which of the following choices is equal to 22 + 36 ?

a)

2(11 + 16)

b)

2(11 + 18)

c)

3(7 + 12)

d)

3(22 + 12)

Number System Review - Grade 6

Total questions: 19

Worksheet time: 57mins

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