Factors
Multiples
Prime or Composite?
Spiral Review
Patterns
100
What are ALL of the common factors for 12 and 42.
1 , 2 ,3 and 6
100
What is the smallest common factor for ANY two numbers greater than zero?
1
100
Is 19 prime or composite? Explain
19 is prime because the only factors are 1 and 19.
100
To win a game, Kelly needs to score 2,000 points. So far, she has scored 837 points. How many more points does Kelly need to score?
1, 163 points
100
Julio wrote the number 36. If his rule is add 6, what is the fourth number in the pattern?
54
200
Which of these numbers have a factor of 5? 15 3 45 5 50
15, 45, 5, 50
200
What is a common multiple of 4 and 3?
12 and 24 and 36
200
Classify the numbers as prime or composite. 37, 65, 71, 82
Prime-37, 71 Composite- 65, 82
200
Joseph is reading a book that is 1,400 pages. He will read the same number of pages each day. If he reads the book in 7 days, how many pages will he read each day?
200 pages
200
What's the next number in this pattern? 3, 11, 19, ___
27
300
Miranda spent $42 to buy some shirts. Each of the shirts cost the same whole-dollar amount. How many shirts could she have bought? List all of the possible amounts.
1, 2, 3, 6, 7, 14, 21, 42
300
In a list of the first 5 multiples of 8 and 9, how many common multiples are there?
none (0)
300
Is 17 prime or composite? Explain
It's prime because it's only factors are 1 and 17
300
DAILY DOUBLE! Michael broke apart 5 x 216 as (5 x 200) + (5x16) to multiply mentally. What strategy did he use? Hint: name the property
Distributive Property
300
Use the rule to find the next four terms of the pattern. Rule: Add 8, subtract 4 The first term is 13.
13, 21, 17, 25, 21
400
Matthew works in a restaurant. He will put 36 bagels on plates. He must use the same number of bagels on each plate. The number of bagels on each plate must be greater than 1 and less 10. How many bagels can be on each plate?
2, 3, 4, 6 or 9
400
What multiple of 7 is also a factor of 7?
7 1 x 7= 7 so seven is a factor and it's also a multiple (a number you get when multiplying by 1)
400
Which is true? a) 13 is a prime number b) 13 is a composite numbers c) 13 is both prime and composite
a) 13 is a prime number
400
Justine added two numbers. The sum was 83. One of the numbers was 45. What was the other number?
38
400
Sandy and Amanta made a secret code. They wrote some numbers of the code so they could remember the pattern. 12, 10, 15, 13, 18, 16, 21, 19 What should the next number be?
24
500
The library is designing a book display with 20 fiction books, 28 biographies, and 40 non-fiction books. Each shelf will have only one type of book on it. Judy says she can put 5 books on each shelf. She listed the common factors of 20, 28, and 40 below to support her reasoning. 20: 1, 2, 3, 4, 5, 7, 20 28: 1, 2, 3, 4, 5, 14, 28 40: 1, 2, 4, 5, 8, 10, 20, 40 Is she correct? Explain your answer. If her reasoning is incorrect, explain how she should have found the answer.
She is not correct. Her lists of factors for 20 and 28 are not correct. Since the common factors are 1, 2, 4 she can only put 1, 2 or 4 book on each shelf.
500
Which is correct? a) 18 is a common multiple of 9 and 18 b) 27 is a common multiple of 9 and 18 c) 9 is a multiple of 18 d) 18 is a factor of 9
a) 18 is a common multiple of 9 and 18
500
Can an even number be prime?
All even numbers are NOT prime EXCEPT for 2. 2 is a prime number. Other even numbers are not.
500
There are 18 rows of seats in the auditorium. There are 24 seats in each row. There are people sitting in the auditorium, taking up two full rows. How many seats in the auditorium are empty?
384
500
Jorge likes to collect stickers, but he also likes to give them away. Currently, Jorge has 87 stickers in his collection. If he collects 5 new stickers each week and gives away 3 stickers each week, how many stickers will he have in his collection after 5 weeks?
97 stickers
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