Unit 2 Review

Prime and Composite

100

List all of the factors of 2. Prime or Composite?

1, 2

Prime

200

List all of the factors of 12. Prime or Composite?

1,2,3,4,6,12

Composite

300

List all of the factors of 36. Prime or Composite?

1,2,3,4,6,9,12,18,36

Composite

400

List all the factors of 67. Prime or Composite?

1,67

Prime

500

List all the factors of 1. Prime or Composite?

1

Neither Prime or Composite

Prime Factorization

100

Find the Prime Factorization of 10.

10=2x5

200

Find the prime factorization of 20.

20=2x2x5

300

Find the prime factorization of 36.

36=2x2x3x3

400

Find the prime factorization of 42.

42=2x3x7

500

Find the prime factorization of 66

66=2x3x11

Order of Operations

100

(4+1)x3

15

200

1+(8x6)/4

13

300

15/3+1x4

9

400

6/2+(1x2)

5

500

50-48/2+(9/3)+6

35

Probability

100

Marissa went to the gumball machine. There were 5 red, 4 blue, and 1 green gumball. What is the probability of getting a blue gumball, show your answer as a fraction and the probability statement.

4/10

Unlikely

200

Mrs. Brown went to get ice cream, there were a lot of options. She could get vanilla, strawberry, or mint chocolate chip ice cream. They also had cones or cups. How many ice cream options could she get? Use a probability tree and the fundamental counting principle.

6) 1. Vanilla Cone 2.Vanilla Cup 3.Strawberry Cone 4. Strawberry Cup 5. Mint Chocolate Chip Cone 6. Mint Chocolate Chip Cup

300

Michael was getting his outfit together but wanted to reach into his closet randomly to pick. He has 3 shirt options (red, blue, purple), 2 pants options (jeans, shorts), and 2 shoe options (flip flops or sneakers). List his number of outcomes.

12

400

Michael was getting his outfit together but wanted to reach into his closet randomly to pick. He has 3 shirt options (red, blue, purple), 2 pants options (jeans, shorts), and 2 shoe options (flip flops or sneakers).

What is his chance of picking an outfit with a red shirt?

4/12

500

Mrs. Brown went to get ice cream, there were a lot of options. She could get vanilla, strawberry, or mint chocolate chip ice cream. They also had cones or cups. The ice cream scooper said she would get a free topping if it is a surprise. They have sprinkles, chocolate syrup, and bananas. What are the chances she gets mint chocolate chip with sprinkles.

2/18

Patterns

100

IN       OUT

2          5

6          9

10        13

15         ?

?          22

Rule +3

15->18

19->22

200

IN     OUT

1         3

2         6

?         9

6         18

8         ?

Rule x 3

3

24

300

IN     OUT

6        1

8        3

12      7

 ?       11

Rule ?

Rule -5

16

400

IN     OUT

2        12

4         24

7         42

10        ?

?         72

Rule?

60

12

x6

500

IN      OUT

18       2

36       4

54       6

63       ?

?         9

Rule?

Rule: Divided by 9

7, 81