Multiplication Properties
Name the property
5 x (3 x 1) = (5 x 3) x 1
Associative Property of Multiplication
Complete the Equation
6 x (3 + __) = (6 x 3) + (6 x 8)
8
How can you use multiplication patterns to solve 800 x 70 = ?
56,000
Estimate by rounding.
88 x 51
90 x 50 = 4,500
A box of crayons has 64 crayons in it. Every student in the grade has one. There are 44 people in the grade. About how many crayons is that total? (Estimate)
60 x 40 = 2,400 crayons
Name the property.
3 x 25 = 25 x 3
Commutative Property of Multiplication
How can you use the distributive property to find 5 x 37?
(5 x 30) + (5 x 7)
How can you use multiplication patterns to solve 20 x 400 = ?
8,000
Estimate using rounding:
31 x 5.7 =
30 x 6 = 180
365 x 20 = 7,300 hamburgers
Name the property
0 x 48 = 0
Zero Property of Multiplication
How can you use the distributive property to find 8 x 45?
(8 x 40) + (8 x 5)
How can you use multiplication patterns to solve 700 x 300 = ?
210,000
Estimate using rounding:
$421 x 62 =
$400 x 60 = $24,000
A ticket to an Nationals game cost $30. How much would it be to buy a ticket to 15 games?
$30 x 15 = $450
Name the property.
10 x (4 + 3) = (10 x 4) + (10 x 3)
Distributive Property
How could you use the distributive property to find 9 x 28?
(9 x 20 ) + (9 x 8)
How can you use multiplication patterns to solve 300 x 40?
You can multiply the non-zero numbers, and then add on the total number of zeros for each multiple of 10.
Estimate the product using rounding:
341 x 2 =
340 x 2 = 680
Name two factors of 30 whose sum is 11.
5 and 6
Name the Property
4 x (5 x 7) = 4 x (7 x 5)
Commutative Property of Multiplication
Complete this using the distributive property:
(2 + 4) x 8 = (2 x 8) + (4 x __)
8
How can you use multiplication patterns to solve 2,000 x 500?
1,000,000
Estimate the product using rounding:
$2.89 x 4 =
$3 x 4 = $12
Name two factors of 20 whose sum is 9.
4 and 5