Multiplication
Multiples of 10
Properties
Properties (Difficult)
Word problems
100
Draw a picture to represent the product of 5 x 4
Drawings may vary, but must show the product of 20.
100
20 x 6 =
120
100
This property says you can change the grouping of 3 factors, but the product will remain the same.
Associative property of Multiplication.
100
Is this equation true or false? (4 x 2) x 3 = 4 x (1 x 3)
The equation is false. The did not just change the groupings, they also changed the factors.
100
This is ALWAYS written after the answer in a word problem.
What is label?
200
What is the product of 8 x 9? (Solve whatever way you wish)
72
200
50 x 8
400
200
This property says you can flip flop the order of your factors but the product will remain the same.
Commutative Property of Multiplication.
200
Is this equation true or false? 4 x (3 + 2) = (4 x 3) + (4 x 2)
The equation is true.
200
A mom bought 3 cookies for each of her 4 children. How many cookies did she buy?
12 cookies?
300
What do you call the numbers you multiply to get a product? (Example: 2 x 3 = )
Factors
300
60 x 6
360
300
(2 x 3) x 4 = 2 x (3x4) is an example of this property.
Associative property
300
Is this equation true or false? 4 x (5 + 2) = 4 + (5 x 2)
The equation is false.
300
There were 9 boxes and 5 markers in each box. How many total markers were there?
45 markers?
400
Show 2 different ways to prove the product of 2 x 3.
Answers will vary, but the product in every example should be 6.
400
What is the missing number? 3 x ____ = 240
The missing factor is 80
400
5 x 3 = 3 x 5
Commutative Property of Multiplication.
400
What is the missing number in this equation? (4 x 5) x 3 = 5 x (4 x ____)
The missing number is 3.
400
Jeshae had 5 baggies with 3 erasers in each. Jester had 3 baggies with 5 erasers in each. Which student had more erasers?
They both had the same amount of erasers! 5 x 3 has the same product as 3 x 5.
500
Name two strategies you can use to prove your product is accurate.
Repeated Addition Equal Groups Arrays Skip Counting
500
What is the missing number? 50 x _____ = 250
The missing factor is 5.
500
6 x 7 = (6 x 5) + (6 x 2) is an example of this property.
The Distributive Property of Multiplication.
500
What is the missing number in this equation? 4 x 8 = (4 x 3) + ( 4 x _____)
The missing number is 4.
500
Linda had 5 dog houses with 4 dogs in each house. Each dog had 7 fleas on it. How many dogs were there in all?
20 dogs
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