Unit 2 Review

GCF

100

Find the GCF of 12 and 18

6

200

Find the GCF of 15 and 25.

5

300

Find the GCF of 8 and 20.

4

400

Find the GCF of 16 and 24.

8

500

Find the GCF of 21 and 28.

7

LCM

100

Find the LCM of 4 and 6

12

200

Find the LCM of 3 and 5.

15

300

Find the LCM of 5 and 10.

10

400

Find the LCM of 2 and 10.

10

500

Find the LCM of 3 and 2.

6

Equivalent Ratios

100

4:6 

_:12

8

200

5:11

10:_

22

300

20:10

2: _

1

400

10:5

100: _

50

500

4:7

_:21

12

Ratios

100

What are the 3 ways to write a ratio?

Fraction, :, and the word "to"

200

1. There are 3 red apples and 5 green apples.
   What is the ratio of red apples to green apples?

3:5

300

1. There are 7 blue balloons and 4 yellow balloons.
   What is the ratio of total balloons to yellow balloons?

11:4

400

1. There are 3 soccer balls and 9 basketballs.
   What is the ratio of soccer balls to basketballs?

3:9

500

1. A basket has 6 oranges and 2 apples.
   What is the ratio of oranges to fruit?

6:8

Extra

100

5 lemons cost $2.75. How much does 1 lemon cost?

0.55

200

2 pumpkins cost $12. How much does 3 pumpkins cost?

$18

300

4 coffees cost $16. How much does 1 coffee cost?

$4

400

12 apples cost $21. How much does 1 apple cost?

$1.75

500

12 donuts cost $24. How much does 24 donuts cost?

$48