Module 2

Dividing fractions/decimals

100

1/5 ÷ 3

1/15 

200

9 ÷ 1/4

36

300

Divide 0.66 / 0.03. 

22

400

Four girls had a dinner together and spent $45.64 in total. They split the cost evenly among them. How much did each girl pay? (Use the division algorithm)

$11.41 

500

Bruce made 39.2 ounces of homemade strawberry jam and wanted to put it in jars of 5.6 ounces. How many jars will Chuck need? 

7 jars 

Multiplying fractions/decimals

100

1/4 x 2/3

1/6

200

2/9 x 3/14 

1/21 

300

6.32 x 2.9

18.328 

400

Benjamin bought 12 goldfish. Each goldfish cost $0.98. How much did Benjamin spend? 

$11.76

500

Ten members of the Science Club went to a history museum. It cost $7.25 for each member of the club. If 90 members went to the museum, how much would the total cost be? 

$652.50

Prime/ composite numbers AND GCF/LCM

100

Name three prime numbers. 

2, 3, 5, 7, 11, 13, 17, 19, 23, 29

200

Name all of the factors of 6.

24, 2, 14, 30, 3, 1, 4, 28, 42, 6, 18, 5, 10, 12, 60, 20, 8, 90

1, 2, 3, 6

300

Choose all multiples of 6. 

24, 2, 14, 30, 3, 1, 4, 28, 42, 6, 18, 5, 10, 12, 60, 20, 8, 90

6, 12, 18, 24, 30, 42, 60, 90

400

What is a composite number? List 5 composite numbers. 

A composite number is a number that is not prime, so it has factors other than 1 and itself. 

Examples: 4, 6, 8, 9, 10, 12, 14, 15, 16, ... 

500

Indicate whether each number is prime or composite. 

8, 9, 11, 12, 13, 18, 17

8: Composite

9: Composite

11: Prime

12: Composite

13: Prime

16: Composite

17: Prime

Equivalent fractions

100

Which fraction with a denominator of 6 is equivalent to 16/24? 

A. 12/6 

B. 16/6

C. 5/6

D. 4/6

D. 4/6

200

Which two fractions are equivalent fractions:
A. 2/4 and 3/5

B. 2/3 and 8/12 

C. 3/4 and 7/8 

D. 2/5 and 1/3 

B. 2/3 and 8/12

300

Find the missing number to make the fractions equivalent. 

12/72 = 24/? 

24/ 144

400

Which expressions are equivalent to 2 1/6? Choose all that apply.

A. 1/6 + 1/6 + 1/6

B. 6/6 + 6/6 + 1/6 

C. 2/6 + 1/6 

D. 12/6 + 1/6 

E. 13/6

B, D, E 

500

Find two equivalent fractions for each. 

2/3 = ?/9 = ?/15

4/5 = ?/35 = ?/50

2/3 = 6/9 = 10/15

4/5 = 28/35 = 40/50 

Surprise!

100

Subtract 361.31 - 2.841

358.469

200

Rename 35/8 as a mixed number. 

4 3/8 

300

Which choice represents 673.983 rounded to the nearest hundreth? 

A. 673.90

B. 673.98

C. 673.99

D. 674.00

E. 700.00

B. 673.98

400

Solve 1,716 ÷ 3 using the division algorithm (long division). 

572

500

Plot the fractions on a number line. 

4/8, 1/8, 16/8, 8/8, 9/8, 12/8

1/8 4/8 8/8 9/8 12/8 16/8