30 is a multiple of 5 because....
Name the first 5 multiples of 3
3, 6, 9, 12, 15

___, ___, ___, ___, ___, ___
18
3, 6, ____, 12, 15
9
5 x 7
12 is a _______ of 4 because 4 x 3 = 12
Name the first 5 multiples of 5
5, 10, 15, 20, 25
What are the factors of 22?
__, ___, __, __
1, 2, 11, 22
10, 15, 20, ___, 30
25
12 x 3
If 45 is a multiple of 5. Then 5 MUST be a _______ of 45.
Name the first 5 multiples of 4
4, 8, 12, 16, 20
What are the factors of 24?
_, _, _, _, _, _, _
1, 2, 3, 4, 6, 8, 12, 24
6, 12, ____, 24, 30
18
name 3 prime numbers
2, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61,71, 73, 79, 83, 89, 97
vocabulary: factors, factor pair
Name the first 5 multiples of 4
4, 8, 12, 16, 20
What are the factors of 20?
1, 2, 4, 5, 10, 20
7, 14, 21, ____, 35
28
- 1 hotdog package has 10 hotdogs.
- 1 hotdog buns package has 8 hotdogs.
If Mr. Boucher is inviting 30 people to eat, how many hotdog packages does he need?
Teacher will listen, but possible answers are:
3 hotdog packages because 3 groups of 10 hotdogs is 30.
3 hotdog packages because 3 times 10 is 30.
give definition of a composite number
vocabulary: factor, factor pair
Name the first 5 multiples of 8
8, 16, 24, 32, 40
What are the factors of 23
9, 18, _____, 36, 45
27
- 1 hotdog package has 10 hotdogs.
- 1 hotdog buns package has 8 hotdogs.
If Mr. Boucher is inviting 30 people to eat, how many hotdog BUN packages does he need?