Prime or Composite
Is 11 prime or composite? Why?
Prime
1x11=11
How do you find the area of a rectangle?
You multiply lengthxwidth
What are ALL of the factor pairs of 12?
1, 12
2, 6
4, 3
24 is a multiple of _____
1, 2, 3, 4, 6, 8, 12, 24
Hot dogs come in packages of 10. Hot dog buns come in packages of 8. How many packages of each do you need to feed 30 people?
3 packages of hot dogs
4 packages of hot dog buns
Is 8 prime or composite? Why?
Composite
1x8=8, 2x4=8
Find the area
Width: 4ft
Length 7ft
28 square ft
____ is a factor of 30
1, 2, 3, 5, 30, 15, 10, 6
_____ is a multiple of 11
22, 33, 44, 55, 66, etc.
Hamburgers come in packages of 12 and buns come in packages of 6. How many packages of each do you need to feed 42 people?
4 packages of hamburgers
7 packages of buns
Is 15 prime or composite? Why?
Composite
1x15=15, 3x5=15
Find the area
Length: 6 inches
Width: 4 inches
24 square inches
What are the factor pairs of 18?
1, 18 2,9 3,6
1, 3, 9
Pencils come in packages of 8 and 11. Jack's class needs 64 pencils. Which pencils would you choose for Jack's class? Explain or show your reasoning.
8
8x8=64
Is 24 prime or composite? Why?
Composite
1x24=24, 2x12=24, 3x8=24, 4x6=24
Find the area
Length: 9 feet
Width: 7 feet
63 square feet
______ is a factor of 7
1 or 7
________ is a multiple of 24
48, 72
Ashley is playing cards with friends. The number of cards never changes, but the number of players does.
a. With 6 players, the cards can be divided equally between the players. Could there be 42 cards? Show your reasoning.
Yes
6x7=42
Prime
1x61=61
What is a possible area for a rectangle with a width of 8 inches?
64, 72, 80, 88, 96
What are the factor pairs of 36?
1,36 2,13 3,12 4,9 6,6
20 is a multiple of
1, 2, 4, 5, 10, 20
Select all of the true statements
A: 21 is a composite number
B: The only factors of 18 are 9 and 2
C: 6 is a factor of 24
D: 7 is a multiple of 14
A and C