Factors & Multiples
Prime & Composite
Multiplication
Think Back...
Anything Goes
100
Is 2 a factor of 18? How do you know?
Yes - because 18 is an even number.
100
Is 7 a prime number? How do you know?
Yes - 7 only has two factors - 1, 7
100
7 x 6 =
42
100
Is "Type of Sandwich Cut" a numerical or categorical variable?
categorical
100
50 x 40 =
2,000
200
Is 5 a factor of 24? How do you know?
No - because you cannot multiply 5 by any number and reach 24.
200
Which of the following numbers is NOT prime? 1, 2, 3, 5, 9, 11
9 (3x3=9)
200
50 x 7 =
350
200
What is an "obtuse" angle?
An angle that is larger than 90 degrees.
200
What is the median in this set of data? (6, 2, 9, 1, 4,)
3
300
Name three multiples of 4.
Answers may vary - 8, 12, 16, 20, 24, 28, etc.
300
Is 16 a prime or composite number? How do you know?
composite (4 x 4 = 16, 2 x 8 = 16)
300
200 x 80 =
16,000
300
Myrna built a square garden. The garden was 5 feet on each side. What is the area of the garden?
25 square feet
300
16 + y = 25 y = ?
y = 9
400
Name three multiples of 9
Answers may vary - 9, 18, 27, 36, etc.
400
Name five prime numbers:
Answers may vary:
400
Is it possible to make a rectangle using 40 tiles with 8 rows? Why or why not? How many tiles would be in each row?
5 tiles in each row
400
What is the perimeter of a rectangle with a width of 8 inches and a length of 5 inches?
26 inches
400
n x 6 = 48 n = ?
n = 8
500
Is 9 a factor of 73? How do you know?
No - 9 x 8 = 72
500
Which of the following is a composite number: 17, 19, 21, 23
21
500
Sam used 63 tiles to make a rectangle. He had 9 rows. How many tiles were in each row?
7 tiles
500
At 9:00 the temperature at Elmwood School was 30 degrees. It dropped 50 degrees by lunch. What was the time at lunch?
-20 degrees
500
What is the median in this set of data? (14, 17, 11, 24, 16)
16
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