Factors and Multiples
List ALL the factors of 28
1, 2, 4, 7, 14, 28
Which is smaller?
2/8 OR 3/5?
2/8
Which statement is true?
12 is a multiple of 24
36 is a multiple of 6
5 is a multiple of 40
8 is a multiple of 32
36 is a multiple of 6
List the first 5 multiples of 9
0, 9, 18, 27, 36, (45)
Which is larger: 4/5 OR 2/3?
4/5
Write 27/5 as a mixed number
5 2/5
Divide 786/3
262
Is 26 a prime or composite number? Why?
COMPOSITE because it has more than 3 factors
1x26
2x13
Three friends each order a medium drink for lunch. Emma drinks 2/6 of her drink. Declan drinks 3/8 of his drink. Ryan drinks 5/12 of his drink. Who drank the smallest amount of their drink?
Emma
List 3 fractions that are equivalent to: 2/6
answers may vary ... 1/3, 3/9, 4/12, 5/15, 6/18, 7/21, 8/24
Multiply 48 x 24
1,152
How many numbers are both multiples of 4 and factors of 40? List them.
There are 4 numbers that are both multiples of 4 and factors of 40. They are 4,8,20, and 40.
Which is smaller?
2 5/6 OR 2 19/24
Explain how you know
2 19/24 because 2 5/6 = 2 20/24
since 19<20, I know 2 19/24 is smaller
Simplify the fraction 9/48
(HINT: use GCF)
3/16
The GCF is 3!
Write 2 2/8 as a sum of whole number and unit fraction parts.
1 + 1 + 1/8 +1/8
How can you tell if fractions are equivalent using a number line?
the fractions will fall at the same place on the number line.
Which of the following is a true statement?
A. A composite number must have three or more factors.
B. All odd numbers are prime.
C. Finding multiples is the key to finding if a number is prime or composite.
D. All even numbers are composite.
A. A composite number must have three or more factors.
There were 15 days of the winter festival with lots of activities to enjoy!
• Miss Wright spent 2/5 of the days doing one activity, 1/3 of the days doing something else, and 7/15 of the days doing a third activity.
• Miss Wright spent less time going on rides than she did looking at the exhibits.
• Miss Wright spent less time looking at exhibits at the festival than she did shopping at the festival.
What fraction of the days of the winter festival did Miss Wright spend going on rides, looking at exhibits, and shopping? Show your work!
Shopping- 7/15
Exhibits- 6/15 (2/5)
Rides- 5/15 (1/3)
Simplify the fraction 24/108
Hint: Use GCF
2/9
The GCF is 12!
Draw a model to show how to write 3 3/6 as an improper fraction. Explain how your model works.
*check model
21/6
My model shows 3 3/6 because it shows three wholes divided into 6 parts and then a fourth whole divided into 6 parts. The first three wholes are totally shaded and the fourth whole has 3 of 6 parts shaded. This helped me to write 3 3/6 as an improper fraction because it showed that there were 21 sixths shaded.
So, the improper fraction is 21/6.
What is the rule for the function table? What is the missing amount?
IN (a) OUT (b)
1 4
5 20
7 28
10 40
12 ?
15 60
a x 4 = b
(Rule= x4)
Missing number: 48