Multiples
List 3...
multiples of 2
2, 4, 6, 8, 10... any even number
True or False
All the factors of 10 are: 1, 2, 5, 10
True
Prime or Composite
6
Composite
2 x 3
If you have 24 flowers, can you put an equal number of flowers into 6 vases? How many?
Yes! 4 in each vase.
10, 20, 30, and 40 are multiples of what number?
10
What factor is missing?
Factors of 20 are: 1, 4, 5, 10, 20
The factor 2
Prime or Composite
11
Prime!
You buy bottles of water in packs of 8. Can you buy exactly 42 bottles? Why or why not?
No. 42 is not a multiple of 8.
Multiples of 5 are easy to find, because all multiples of 5 end in which two digits?
5 or 0
List all the factors of 9
1, 3, 9
Prime or Composite
21
Composite
3 x 7
You buy some cards in packs of 9. Can you buy exactly 36 cards? Why or why not?
Yes! You can buy 4 packs to equal 36 cards.
True or False
71 is a multiple of 9
False
These numbers are ALL the factors of what number?
1, 5, 25
25
Prime or Composite
40
Composite
10 x 4
20 x 2
5 x 8
What are two ways you can arrange the number 56 into an array?
1 x 56 or 7 x 8
List 3 multiples of 13...
13, 26, 39, 52, 65...
List all the factors of 35
1, 5, 7, 35
Prime or Composite
31
Prime!
Tom and Jerry buy packs of gum. Tom buys 24 pieces of gum and Jerry buys 36 pieces of gum. How many pieces of gum could be in each pack? Find two correct answers. (Gum does NOT come in a pack of 1)
Packs of 2, 3, 4, 6, or 12