Properties
What property of multiplication is shown in
0 = 9 x 0
The Zero Property of Multiplication
What is the missing number in this equation?
3 x 10 = (2 x 10) + ( ___ x 10)
The missing number is 1.
2 + 1 = 3
When multiplying by 10 or 100, what property of multiplication is being used?
The Identity Property of Multiplication
What is the product?
6 x 20
120
Daniel does 10 pull ups each day. How many pull ups will Daniel do in 7 days?
Daniel would do 70 pull ups.
When a factor is multiplied by one, it is an example of which property of multiplication?
The Identity Property of Multiplication
What is the missing number in this equation?
11 x 8 = (11 x ___) + ( 11 x 3)
The missing number is 5.
5 + 3 = 8
What is the product?
6 x 10
60
What is the product?
500 x 3
1500
Dennis has placed his Lego mini figures into 7 rows with 8 figures in each row. How many figures does Dennis have in all?
Dennis has 56 mini figures.
What property of multiplication is shown in
7 x 8 = 8 x 7
The Communitive Property of Multiplication
What is the missing number in this equation?
7 x _____ = (7 x 5) + ( 7 x 1)
The missing number is 6.
5 + 1 = 6
What is the product?
100 x 5
500
How many zeros will the product have?
200 x 5
3 zeros - 1,000
Jack uses the break apart strategy to solve 7 x 8. He breaks up the 7 into 5 and 3. What is Jack's error?
Jack should break up the 7 into two numbers that add up to 7. 6 + 1 , 5 + 2, or 4 + 3 would be factors that would work.
When a factor is broken apart into two other factors before multiplying, this is an example of which property of multiplication?
The Distributive Property of Multiplication
Compare using <, >, or =.
6 x 7 ______ 8 x 5
6 x 7 > 8 x 5
42 > 40
What is the missing factor?
3 x _______ = 300
100
What is the product?
6 x 800
4,800
Jose says that the product of 4 and 50 will have one zero. What is Jose's error?
4 x 50 = 200. 200 has two zeros.
What property of multiplication helps us know when to stop listing factors when using the U method?
The Communitive Property of Multiplication
(repeat fact)
Compare using <, >, or =.
7 x 5 ______ 3 x 12
7 x 5 < 3 x 12
35 < 36
What is the missing factor?
______ x 100 = 1,000
10
What is the missing factor?
5 x _______ = 4,000
800
Tonya has a number of erasers equal to 5 x 6. Michael has 7 times as many as Tonya. How many erasers does Michael have?
Michael has 210 erasers.
Tonya has 30. 30 x 7 = 210