List the factors of 14.
1, 2, 7, and 14
The multiples of 3 up to 25
What is 3, 6, 9, 12, 15, 18, 21, and 24?
Mike at 5 cups of food. Millie ate twice as much as Mike. How much food did Millie eat?
5x2 = 10
Millie ate 10 cups of food (OH MAN...that's a lot)
This number is prime.
A. 34
B. 15
C. 23
D. 96
What is C
How many factor pairs does 12 have?
3 factor pairs
The first 5 multiples of 5
What is 5, 10, 15, 20, and 25?
This number is composite.
A. 29
B. 19
C. 51
D. 2
What is C
What is a factor of 200? Select 2 answers.
A. 8
B. 3
C. 12
D. 40
A and D
ANSWERS WILL VARY
Scarlett has 4 apples, and this is 4 times as many as her brother. How many apples does her brother have?
4/4 = 1
Her brother has 1 apple.
Is 71 prime or composite? Explain how you know.
71 is prime. It only has 2 factors 1 and itself.
OR 1 factor pair 1x71
What are the factors of 48?
1, 2, 3, 4, 6, 8, 12, 16, 24, 48
Look at each pair of numbers. Which one shows the second number is a multiple of the first number.
A. 8,22
B. 5,92
C. 3,29
D. 6,48
D
Sally shoots and arrow 24 yards. This is 4 times as far as Sal shoots his arrow. How many yards did Sal shoot his arrow?
24/4 = 6 OR 4xn = 24 n=6
Sal shoots his arrow 6 yards.
Jason says that 2 is a composite number. His reasoning is "because all the multiples of 2 are even 2 must be a composite number."
Do you agree or disagree with Jason.
Explain your thinking.
I disagree with Jason because 2 is a prime number. 2 is a prime number because it only has 2 factors 1 and 2. Having even multiples does not determine if a number is prime or composite.
Which product has an ODD number of factors? How do you know?
A - 7
B - 16
C - 24
D - 19
B - 1, 2, 4, 8, 16 (has 5 factors)
Because it has a square array that is a 4x4.
What multiples are the common multiples of 5 and 15?
1, 3, 5, 15, 25, 27, 30, 32, 35, 40, 42, 45
15, 30, and 45
Is 93 prime or composite? Explain how you know.
93 is composite because there are at least 3 factors, 1, 93, and 3.
OR
There are two factor pairs
1x93 and 3 x 31