Vocabulary
What is a quotient?
The answer to a division problem
Write 5+5+5+5=20 as a multiplication equation.
5x4=20
16/8
16/8=2
The _____________ Property says you can break down difficult multiplication problems into easier ones.
What are factors?
The numbers you are multiplying
Show 3x4 as an array.
An array with 3 rows with 4 things in each row
OR 4 rows with 3 things in each row.
The product is 12.
What is the quotient of 30/5?
30/5=6
The __________ Property says you can change the grouping of the factors, and the product stays the same.
The Associative Property
What is a product?
The answer to a multiplication problem
Show 8x2 using repeated addition.
8+8=16
If 5 x 9 is 45, what is 45/9?
45/9=5
The ___________ Property says you can change the order of the factors, and the product stays the same.
The Commutative Property
Which direction do rays go in an array?
Side to side/horizontal
Show 3x6 using equal groups.
3 equal groups of 6
OR 6 equal groups of 3
The product is 18.
Write 14/7 as a repeated subtraction problem. What is the quotient?
14 -7=7
7-7=0
Because we subtracted 7 two times, the quotient is 2.
Write the commutative property of 7x8.
8x7
Which direction do columns go in an array?
Up and down/verticle
Find the product of 5 x 8.
5 x 8 = 40
What strategy did you use?
Mrs. Harkins has 80 lollipops to share with 10 kids. How many lollipops can each kid get if they all get an equal amount?
80 lollipops/10 kids = 8 lollipops for each kid
John says that (2x3)x4 will not have the same product as 2x(3x4). Is he correct? Why or why not?
John is not correct. The associative property lets us change the grouping of the factors, and the product will be the same.