Factors/Multiples
Multiplication and Division
Prime and Composite
Multiplicative Comparisons
Relational Thinking
100
List all the factors of 20.
(1,20) (2,10) (4,5)
100
Use repeated addition to solve: 6 x 8
6+6+6+6+6+6+6+6 = 48 OR 8+8+8+8+8+8 = 48
100
What does PRIME mean?
a number has only one factor pair
100
Juan blew up 4 balloons. Katie blew up 3 times as many balloons as Juan. Write an equation that represents the number of balloons Katie blew up.
4 x 3 = k k = 12 Katie blew up 12 ballons
100
True/False: 8 + 9 = 18 - 1
17 = 17 True
200
Find the common factors between 15 and 30.
Common Factors : 1, 3, 5, 15
200
Solve: 4 x 3 =___ 5 x 4 = ___ 6 x 3 = ___ 40 x 10 = ____
12 20 18 400
200
True or False: All odd numbers are prime.
False All EVEN numbers are composite
200
Sam has 3 times as many cookies as Ricky. Ricky has 6 cookies. Draw a picture and write an equation to represent the number of cookies Sam has.
3 x 6 = 18 Sam has 18 cookies
200
True/False: 36 ÷ 9 = 6 + 3
False 4 does not equal 9
300
Jose makes $7 every day. Which could not be the amount of money he makes after some number of days? a. 7 b. 14 c. 23 d. 42
c. 23
300
Solve: 21 ÷ 3 = ___ 45 ÷ 5 = ___ 100 ÷ 10 = ___ 600 ÷ 10 =____
7 9 10 60
300
Is 33 prime or composite?
Composite Factors: 1, 33 3, 11
300
There was a soccer tournament at the park over the weekend. On Sunday 27 teams played. 3 times as many teams played on Sunday then on Saturday. How many teams played on Saturday?
27 / 3 = 9 9 teams played on sunday
300
Is this statement true or false? 4 x 8 = 32 and 8 x 4 = 12
False
400
Sandra is organizing her 24 marbles in rows. What are the possible numbers of marbles that could be in each row?
1, 24 2, 12 3, 8 4,6
400
How is 3 times as many as 7 related to 7 times as many as 3? Explain your reasoning.
3 times as many as 7 is 3 x 7 = 21 7 times as many as 3 is 7 x 3 = 21 They are related because the factors and product are the same. The order is different.
400
Is 11 prime or composite. Explain.
Prime Factors: 1, 11
400
Jake has 48 popsicles. Franny has n popsicles. Jake has 12 times as many stickers as Franny. Using multiplication or division, write an equation to solve this problem.
48/12 = P OR 12 x P = 28
400
4 x b = 17 + 7
b = 6
500
Sam states that 4 is a multiple of 24. Identify her misunderstandings. Clarify your answer.
4 is not a multiple of 24. 4 is a FACTOR of 24. 4 x 6 = 24
500
How does 36 divided by 12 is 3 relate to 12 times 3 is 36?
Multiplication and Division are inverse operations. Multiplication is the opposite of division.
500
Jenna states that the number 70 is a prime number. Identify her misunderstandings. Clarify your answer by decomposing into factor pairs.
Jenna thinks 70 is odd because it has no factor pairs. you can multiply 1 x 70 and 10 x 7 to get 70, therefore is is not prime. Prime numbers only have 1 factor pair. 70 has 2.
500
Create a multiplication comparison for 4 x 5 = 20.
answers may vary
500
Look are the following equations: 12 x 2 = 24 + 24 AND 30 – 20 = 80 ÷ 8 Are they true or false?
12 x 2 = 24 + 24 false 20 – 30 = 80 ÷ 8 true
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