Module 2A Review

GCF

100

Find the GCF of 18 and 27

9

200

The GCF of 10 and 25 

5

300

The GCF of 42 and 14

7

400

Find the GCF 65 and 13

13

500

Find the GCF 76 and 80

4

Distributive Property

100

2(3+5)

16

200

3(11+10)

63

300

5(8+3)

55

400

5(2+4)

30

500

8(12+4)

128

LCM

100

LCM for 4 and 6

12

200

LCM for 6 and 9

18

300

LCM for 42 and 7

42

400

LCM for 8 and 6

24

500

LCM for 15 and 6

30

Division

100

720/9

80

200

1/5 divided by 3/4

4/15

300

6/8 divided by 2/8

3

400

11/5 divided by 2/6

6 6/10 or 6 3/5

500

41,598 divided by 15

2773 R3

Divisibility

100

Is 879 divisible by 3, 9, or both?

3

200

What are they factors of 36?

1 x 36

2 x 18

3 x 12

4 x 9

300

Is 415 divisible by 3, 9, neither or both?

neither

400

Is 105 divisible by 3?

yes

500

How can I tell if a number is divisible by 3 or 9?

add the digits