Halloween Math Review

Integers

100

7 - 10

-3

200

10 + (-15)

-5

300

3 - (-8)

5

400

-16 - 32

-48

500

-142 - (-145)

3

Least Common Multiple

100

Find the LCM of 2 and 7

14

200

Find the LCM of 6 and 8

24

300

Find the LCM of 21 and 28

84

400

Find the LCM of 32 and 40

160

500

Find the LCM of 6, 8, and 12

24

Greatest Common Factor

100

Find the GCF of 3 and 9

3

200

Find the GCF of 16 and 24

8

300

Find the GCF of 14 and 21

7

400

Find the GCF of 45 and 60

15

500

Find the GCF of 24, 36, and 60

12

Division

100

56 ÷ 8 =

7

200

132 ÷ 11 =

12

300

672 ÷ 21 =

32

400

2,496 ÷ 32 =

78

500

6,217 ÷ 42 =

148 R 1

Halloween

100

According to folklore, what object can vampires not see themselves in?

A mirror

200

What orange vegetable is often mistaken for a pumpkin but is usually smaller?

 Gourd

300

What is another name for a potion made by a witch?

Brew/Elixir

400

What does a black cat symbolize in many Halloween superstitions?

Bad luck or witchcraft

500

What is the largest pumpkin ever weighed approximately over?

2,700 pounds