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Greatest Common Factor
Least Common Multiple
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Solve with the Distributive Property
100

4 x 3

12

100

12 & 16

4 is the GCF

100

3 & 9

9 is the LCM

100

21 + 0 = 21

Identity Property of Addition

100

4 (5+ 2) 

28

200

5 x 8

40

200

12 & 24

12 is the GCF

200

4 & 5

20 is the LCM

200

(5 x 8) x 7 = 5 x (8 x 7)

Associative Property of Multiplication

200

2 (9 + 4) =

26

300

11 x 7

77

300

28 & 36

4 is the GCF

300

12 & 20

60 is the LCM

300

2 x 3 = 3 x 2

Commutative Property of Multiplication

300

9 (8-5) =

27

400

9 x 6

54

400

30 & 75

15 is the GCF

400

8, 4, & 6

24 is the LCM

400

6 (2x + 6) = 12x + 36

Distributive Property

400

6 (5+ 6)

66

500

12 x 5

60

500

16, 72 & 80

8 is the GCF

500

3, 9, & 12

36 is the LCM

500

(3 + 1) + 9 = 3 + (1 + 9)

Associative Property of Addition

500

11 (4 +7)

121