the numbers you multiply together to get a product
200
Which number is composite.
A. 4
B. 5
C. 11
D. 17
A. 4
200
List the factors of 24
1, 2, 3, 4, 6, 8, 12, 24
300
Name the first five multiples of 7.
7, 14, 21, 28, 35
300
The factors of 18
1, 2, 3, 6, 9, 18
300
What are prime numbers?
numbers that only have two factors: one, and the number itself.
300
Which answer to the following is a prime number?
A. 3 + 4
B. 15 -5
C. 2 + 2
D. 9 - 3
A. 3 + 4= 7
300
These are the factors of 42. Determine which numbers are prime or composite.
1, 2, 3, 6, 7, 14, 21, 42
Prime: 1, 2, 3, 7
Composite: 6, 14, 21, 42
400
Name the first five multiples of 25.
25, 50, 75, 100, 125
400
Name the factors of 20
What is 1, 2, 4, 5, 10, 20
400
What are composite numbers?
numbers that have more than two factors.
400
Which answer to the following is a composite number?
A. 3 + 2
B. 2 + 0
C. 7 + 4
D. 8 + 1
D. 8 + 1
400
What are the factors of 50?
1, 2, 5, 10, 25, 50
500
Name the first five multiples of 13.
13, 26, 39, 52, 65
500
Name the factors of 100.
1, 2, 4, 5, 10, 20, 25, 50, 100
500
Explain the process of finding the factors of a number
Start with 1 x the number.
Try 2, 3, 4, etc.
When you repeat your factors, cross out the repeat - you’re done at this point.
If you get doubles (such as 4 x 4), then you’re done. Repeats or doubles let you know you’re done.
500
Is 36 a prime or composite number? If it is a composite number, list its factors.
composite; 1, 2, 3, 4, 6, 9, 12, 18, 36
500
Find the missing multiples.
___, 14, 21, ___, 35, ___, ___, 56, ___, 70, ___
Show your work.
7 x 1= 7 7 x 7= 49
7 x 2= 14 7 x 8= 56
7 x 3= 21 7 x 9= 63
7 x 4= 28 7 x 10= 70
7 x 5= 35 7 x 11= 77
7 x 6= 42