LCM
GCF
Adding
Subtracting
Vocabulary
100

4 and 8 


100

12 and 18 

6

100

5.4+2.3

7.7

100

7.5-2.3

5.2

100

Multiples are

the numbers you get when you skip count 

200

3 and 8

24

200

24 and 36

12

200

7.25+3.6

10.85

200

9.48-3.12

6.36

200

Factors are 

the numbers you multiply together to get a given number 

300

5 and 9

45

300

56 and 98

14

300

12.58+4.97

17.55

300

15.6-8.37

7.23

300

Products are

what you get when you multiply two numbers together

400

12 and 18

36

400

48 and 72

24

400

13.75+6.496

20.246

400

23.475-12.28

11.195

400

LCM is 

Least Common Multiple, the smallest common multiple shared between two or more numbers. 

500

9 and 12

36

500

132 and 198

66

500

18.573+9.248

27.821

500

56.093-19.578

36.515

500

GCF is 

Greatest Common Factor, the biggest common factor two or more numbers. 

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