Prime and Composite Numbers
What is a prime number?
A number that only has 1 set of factor pairs, one and itself.
What is the difference between a factor and a multiple?
Factors are numbers that multiply together to equal a product.
A multiple is the answer to a multiplication problem (similar to skip counting)
6, 9, 12, 15...
List the next three terms
18, 21, 24
18 people ordered chocolate ice cream last night. 7 times as many people ordered cotton candy. How many people ordered cotton candy ice cream?
126 people
The number of students wearing an orange shirt is 6 times the number of students wearing a pink shirt. Write an equation that compares the number of orange shirts to the number of pink shirts.
O = 6 x P
What is a composite number?
A number that has more than one factor pair.
Is 7 a multiple of 63?
Rule: Multiply by 6
6, 36, 216...
List the next three terms in the pattern
2,384 people watched a video about Bill Nye. That is 4 times more than the people that watched a video on Generation Genius. How many people watched a video on Generation Genius?
596 people
Lily sold 328 bracelets last week. She sold 193 bracelets this week. How many bracelets did she sell in all?
521 bracelets
Which number is composite?
17, 53, 57, 61
Is 180 a multiple of 12?
Yes
Solve for x
(14+5) - 8 = x
An ice cream company ships a large number of gallons of ice cream to Rakestraws. Then they ship 1,384 more gallons of ice cream. Rakestraws has 3,482 gallons of ice cream. How many gallons of ice cream did the company originally ship?
2,098 gallons.
Find the value of x
5 x 6 + 7 = 7 + x
30
Which number is prime?
23, 85, 93, 99
What are the factors of 48?
1, 2, 3, 4, 6, 8, 12, 16, 24, 48
Solve for x
(14 x 3) + (8 x 9) = x
x=114
57 kids attended the outdoor fair. 23 adults attended the fair. It cost $19 for a child's ticket to the fair and $22 for an adult ticket to the fair. How much money did the fair make on admission tickets?
$1,589
4 people were in swim training class on Saturday. 20 people were in swim training class on Sunday. How many times as many people were in swim training class on Sunday than on Saturday.
5 times as many
I am a prime number less than 40. The sum of my digits is 8. Who am I?
17
How many factor pairs does 50 have?
3
Solve for T
(13 + 9) x (14 + 6) - 3 = T
39
There are 7 containers of green bean bags in the gym. Each container has 15 bean bags in it. There are 8 containers of blue bean bags in the gym. Each container has 18 bean bags in it. During gym class, 23 of the bean bags broke and can no longer be used. How many bean bags are left in all?
226 bean bags
Write the next three terms of the pattern.
The first term is 5. The rule is multiply by 2 subtract 1.
9, 17, 33