A number multiplied by another factor to equal a multiple. (or something equivalent)
100
What is a multiple?
A multiple is a number that can be divided equally by all of its factors. A multiple is like the first number when you are skip counting. (Something along these lines...)
100
What is a prime number?
A number with only TWO factors (ONE factor pair) and only ONE possible array that can be made.
100
Draw an array with the dimensions 3 by 5.
Ms. M to decide if picture is correct.
100
In the following equation, what is the name given to the numbers 4 and 5?
4 x 5 = 20
Factors
200
Find all the factors of 9.
1, 3, 9
200
List the first ten multiples of 2.
2, 4, 6, 8, 10, 12, 14, 16, 18, 20
200
What is a composite number?
A number with MORE THAN 2 factors.
200
How many arrays can you build with 12 tiles?
1 x 12
2 x 6
3 x 4
3 rectangles (6 if you flip them)
200
In the following equation, what is the name given to the number 20?
4 x 5 = 20
product
300
List all the factors of 18 from smallest to biggest.
1, 2, 3, 6, 9, 18
300
List the first ten multiples of 6.
6, 12, 18, 24, 30, 36, 42, 48, 54, 60
300
Is the number 31 prime or composite? How do you know?
Prime - it has only TWO factors (1 and 31)
300
Solve the problem: Mike was placing his birthday cards on shelves in his room. There were 4 shelves stacked one on top of the next. If Mike received 28 birthday cards and wanted to distribute them evenly on the shelves, how many cards would be on each shelf?
7 cards on each shelf
300
Write an equation to match the following word problem:
Bill has six friends. He wants to give each of his friends three cookies. How many cookies does he need to give to his friends?
6 x 3 = 18
400
List all the factors of 36.
1, 2, 3, 4, 6, 9, 12, 18, 36
400
Is 91 a multiple of 3? Why or why not?
No, because it cannot be divided by 3 equally OR because when skip counting by 3's you will not land on 91.
400
Is the number 49 prime or composite? How do you know?
Composite - it has MORE than 2 factors (1, 7, 49)
400
Solve: Annabelle has 13 friends coming to her birthday party. She is putting 7 candies in each of their goodie bags. How many candies will she need to give out?
91 candies
500
Find the prime factorization of 54.
2 x 3 x 3 x 3
500
Is 114,324 a multiple of 4?
Yes, the last two digits of the number - 24 - are a multiple of 4, so the whole number is divisible by 4.
500
How do we know that all square numbers are composite?
They automatically have more than 2 factors - 1 and the number, and also the factor that can make it it's square.
500
There are 52 cards in a standard deck. Bernie put the cards into 4 equal rows. Did each row have a prime or composite number of cards?
Each row had 13 cards. 13 is a PRIME number.
500
Max has one hour to work on his homework. He has four assignments and wants to spend the same amount of time working on each assignment. How much time will he spend on each assignment. Write an equation to match the situation and provide an answer.