GCF & LCM

GCF - easy

100

GCF of 15 & 20

5

200

GCF of 18, 10

2

300

GCF of 20, 24

4

400

GCF of 45, 36

9

500

GCF of 42, 28

14

GCF - difficult

100

GCF of 36, 54

18

200

GCF of 36, 72

18

300

GCF of 54, 81

27

400

GCF of 48, 72

24

500

GCF of 52xy³ and 91x³y

13xy

LCM - easy

100

LCM of 4, 6

12

200

LCM of 10, 15

30

300

LCM of 12, 18

36

400

LCM of 16, 24

48

500

LCM of 15, 25

75

LCM - difficult

100

LCM of 30, 120

120

200

LCM of 25, 30

150

300

LCM of 48, 36

144

400

LCM of 42, 28

84

500

LCM of 12x²y, 80xy²

240x²y²

Vocab

100

GCF Stands for

Greatest Common Factor

200

LCM Stands for

Least Common Multiple

300

Another way of saying the list of numbers made when you count by a number

Multiples

400

The smaller pieces that a multiplication problem is broken into

Factors

500

The name of the simple method we have used to find GCF and LCM

Ladder Method