Vocabulary
What is the definition of a multiple?
the product of a whole number
EX 4: 4,8,12,16
Which number is a factor of 40?
A) 80
B) 12
C) 9
D) 2
D) 2
Which of these are multiples of 3?
A) 9
B) 18
C) 25
D) 30
A) 9
B) 18
D) 30
Treena was decorating tables for her birthday party. She put 6 balloons at each table, and she had no balloons leftover. Which of the following shows how many balloons she might have started with?
A) 16
B) 12
C) 9
D) 2
Factors
D) 2
What is the definition of a factor?
The numbers you multiply together to get another number (a product)
EX 2X5=10 (2 and 5 are factors)
Which statement is true about the number 2?
A) 2 is a prime number
B) 12 is a factor of 2
C) 2 is a factor of 14
D) 2 is a composite number
A) 2 is a prime number
C) 2 is a factor of 14
Mark noticed that the final scores for both the Home and Visitors teams were composite numbers in last week’s basketball game. Which scoreboard shows the final score of Mark’s game?
A) HOME: 15. VISTORS: 11.
B) HOME: 13. VISTORS: 21.
C) HOME: 35. VISTORS: 27.
D) HOME: 17. VISTORS: 31.
C) HOME: 35. VISTORS: 27.
Angela went to the grocery store to buy packs of cookies for her 18 theater club members. Cookie packs are sold in boxes with 3 packs in each box. How many boxes should Angela buy?
A) She should buy 4 packs because 4 is a factor of 18.
B) She should buy 4 packs because 4 is a multiple of 18.
C) She should buy 6 packs because 6 is a factor of 18.
D) She should buy 6 packs because 6 is a multiple of 18.
C) She should buy 6 packs because 6 is a factor of 18.
How are prime and composite numbers different?
Composite numbers have more than two different factors, WHILE Prime numbers have only two different factors: 1 and the number itself.
For these types of questions, there may be more than one correct answer, and you will choose ALL of the correct answer choices. Which of the following numbers are multiples of 10? Select all that apply.
A) 2
B) 4
C) 5
D) 10
A) 2
C) 5
D) 10
Class A has 18 students. Class B has 12 students. They will use only tables of 6.
Q1: How many students in all?
Q2: How many tables of 6 are needed?
Q1: 18 + 12 = 30 students
Q2: 30 ÷ 6 = 5 tables
Sharon is creating a game board to review what she has learned in math class. If she draws 15 squares for the spaces on the game board, she would have these 2 designs to choose from:
After looking at the designs, Sharon decides to use more than 15 squares for her game board. Which number of squares would give her only one rectangular design for her game board?
A) 20
B) 23
C) 24
D) 32
Prime Number
B) 23
How can you use factor pairs to make an array?
Factor pairs are the numbers used for the rows and columns in the array model to show the multiplication of a product.
Which of the following statements are true about the number 7? Select all the true statements.
A) Seven is a composite number
B) 28 is a multiple of 7
C) Seven is a factor of both 21 and 28
D) If you multiply 7 and 4, you'll get a multiple greater than 30
B) 28 is a multiple of 7
C) Seven is a factor of both 21 and 28
There are 24 cones for a relay. Each team uses 3 cones. There are 4 stations, each with the same number of teams.
Q1: How many teams can be made?
Q2: How many teams are at each station?
Q1: 24 ÷ 3 = 8 teams
Q2: 8 ÷ 4 = 2 teams per station
A pizzeria sells pizzas in boxes of 6 slices.
Ms. Davis’s class has 30 students, and each student eats 2 slices.
How many boxes of pizza should she order so everyone gets enough?
MULTI-STEP:
1) 30 x 2 = 60 slices needed (multiple)
2) 60 / 6 = 10 boxes needed (factor)
What number is NEITHER prime or composite?
1
Nikki is thinking of a number between 1 and 30. She gives the following clues:
● The number is even.
● 7 is a factor of the number.
● The number is a multiple of 4.
Which number could Nikki be thinking about?
Balloons come in packs of 8 or in packs of 12. Two classrooms have 16 and 8 students. Each student gets one balloon.
Q1: How many balloons are needed in total?
Q2: Which pack should the teacher buy?
Q1: 16 + 8 = 24
Q2: BOTH (BONUS --> 12 pack for less packs and 8 pack for more packs)
Four fourth grade students made the following claims in math class:
Justin: “All even numbers greater than 2 are composite."
Zora: "The number 9 has 2 factor pairs."
Micah: "The number 2 is composite."
Lena: "All odd numbers are prime."
Which students made true statements?
A) Zora only
B) Justin and Zora
C) Justin, Zora, and Lena
D) Justin, Zora, Micah, and Lena
B) Justin and Zora