Sam plants 5 rows of potatoes with 6 in each row. How many potatoes did he plant?
5 x 6 = 30
Sam planted 30 potatoes.
Courtney has 45 beans. She has 9 bags. How many beans go into each bag?
45 / 9 = 5
Each bag will get 5 beans.
Give an example of the 0 Property of Multiplication.
Example: 1 x 0 = 0
Write an equation, solve and identify which problem type this is.
Lucy went to the store for eggs. The carton she bought had 2 rows of 6 eggs. How many eggs did she buy total?
Array Multiplication
Array Division
Equal Groups Multiplication
Equal Groups Division
2 x 6 = 12
She bought 12 eggs.
Array Multiplication
Complete the problem.
6 x 5 = ___ x 6
6 x 5 = 5 x 6
8 x 2 = 16.
She will give them 16 cookies.
Yes, she has enough cookie dough.
Jess went shopping on Saturday. She was shopping for 50 minutes. If she spent 10 minutes in each store, how many stores did she go into?
50 / 10 = 5
She went into 5 stores.
Give an example of the Commutative Property of Multiplication.
Example: 7 x 8 = 8 x 7
Write an equation, solve, and identify the problem type.
There are 8 gold fish in each tank at a pet store. If there are 56 goldfish in all, how many tanks are there?
Array Multiplication
Array Division
Equal Groups Multiplication
Equal Groups Division
56 / 8 = 7
There are 7 goldfish in each tank.
Equal Groups Division
Complete the problem.
8 x 3 = (__ + __) x 3
8 x 3 = (5 + 3) x 3
8 x 3 = (1+7) x 3
8 x 3 = (2+6) x 3
8 x 3 = (4+4) x 3
7 x 4 = 28
She needs to buy 28 rainboots.
24 / 8 = 3
She hangs 3 picture in each row.
Example: 1 x 3 = 3
Write an equation, solve, and identify the problem type.
Paulo arranged 72 baseball cards in rows and columns. If there were 9 rows, into how many columns did he arrange the cards?
Array Multiplication
Array Division
Equal Groups Multiplication
Equal Groups Division
72 / 9 = 8
There are 8 columns.
Array Division
Complete the problem.
7 x (3 x 4) = 3 x (__ x __)
7 x (3 x 4) = 3 x (7 x 4)
Write a multiplication equation to find the area of this rectangle.
3 x 4 = 12 or 4 x 3 = 12
The area is 12 units2
Jake and Anthony both love to skateboard. They decide to share Jake's skateboards and Anthony's helmets equally with each other. Jake has 12 skateboards and Anthony has 6 helmets. How much will each boy get?
12 / 2 = 6
6 / 2 = 3
Each boy gets 6 skateboards and 3 helmets.
Give an example of the Identity Property of Addtion.
Example: 8 + 0 = 8
Write an equation, solve, and identify the problem type.
The store sells bottles of juice in six-packs. Mark bought 9 six-packs for a picnic. How many bottles did he buy?
Array Multiplication
Array Division
Equal Groups Multiplication
Equal Groups Division
9 x 6 = 54 or 6 x 9 = 54
He bought 54 bottles.
Equal Groups Multiplication
Write a word problem that can be solved using this drawing. Then solve.
Use the two smaller rectangles to find the larger area. Write each each step you use!
1. 8 x 3 = 24
2. 8 x 5 = 40
3. 40 + 24 = 64 units2
What are 3 different division equations you could write starting with the number 24?
24 / 1 = 24
24 / 2 = 12
24 / 3 = 8
24 / 4 = 6
24 / 8 = 3
24 / 6 = 4
24 / 12 = 2
Give an example of the Associative Property of Multiplication.
Ex: (6 x 2) x 4 = (4 x 2) x 6
Write your own word problem that is an array division problem and solve it.
Teacher will look at problems.
Which expression has the same product as 6 x 4 and explain why.
a. (6 x 1) + (4 x 1)
b. 4 x 6
c. 6 x 6
d. (3 x 2) + (3 x 2)
4 x 6 will have the same product as 6 x 4 because they are showing the commutative property. The commutative property switches the order of the numbers but will not change the answer or product.