Factors and Multiples
List the factors of 4
1, 2, and 4
Name 2 prime numbers
2, 3, 7, 11, 13, 17, 23, etc
9x5=x
45
Miles bought a hydroflask and a pack of scrunchies. The hydroflask cost 4 times as much as the scrunchies. The scrunchies cost $8. How much did the hydroflask cost?
4x8=$32
Chloe is 9 years old. Her grandma is 10 times older than she is. How old is her grandma?
90 years old
List four multiples of the number 3
3, 6, 9, 12, 15, 18, 21, 24, 27, 30
Name two composite numbers
Answers will vary
7x4=x
28
a. 10x2=f
b. 10=2xf
c. 10-2=f
10= 2 x f
6 x ___ = 36
6
What number has the factors 1, 2, 3, 4, 6, and 12
12
Is 45 prime or composite?
Composite
7x8=x
56
Forrest had a box of 36 markers. The box had 4 columns. How many markers were in each column?
9 Markers
composite
List all of the factors of the number 13
1, 13
How do you know that the number 7 is prime?
It only has one factor pair 1 and itself.
5x10=x
50
Tabitha's table has 5 students. Each student brought in 3 pencils. Andrew's table has 5 students. Each student brought in 5 pencils. If Miss Dalton collected ALL the pencils from both tables and then gave each student from both tables an equal amount amount of pencils, how many pencils would each student get?
Four pencils each
The equation 8x5=40 can mean
a. 8 folders and 5 folders together is 40 folders
b. 8 folders divided into 5 groups is 40 folders
c. 40 folders are 8 times the 5 folders in my backpack
d. The difference between 8 folders and 5 folders is 40 folders
c. 40 folders are 8 times the 5 folders in my backpack
I am a factor of both 45 and 27. I am not a factor of 15. What am I?
9
How do you know the number 6 is composite?
It has more than one factor pair, 1 and 6, 2 and 3
50 x n = 100
2
There are 5 kids in the cafeteria. They each brought 3 packs of gum to school. The class needs 9 times as much gum as the kids in the cafeteria. How many packs of gum does the class need?
135 packs of gum
Solve!
(5x3)+(5x5)=x
40