Area Model
Make and solve an area model for 24x33.
What is 792?
175x5= (5x100)+(5x70)+(5x__)
What is 5?
2x3=3x2
Commutative property of multiplicaiton
Make and solve an area model for 30x51.
What is 1,530?
25 x 31 = (25x30)+(25x__)
What is 1?
(2x3)x4=2x(3x4)
Associative Property
Make and sovle an area model for 506x9.
What is 4,554?
48x23=(48x__)+(48x20)
What is 3?
789x2=(700x2)+(80x2)+(9x2)
Distributive property of multiplication
Make and solve an area model for 23x78.
What is 1,794?
48x23=(3x8)+(__x40)+(3x40)+(8x20)
What is 20?
Associative or commutative property?
2x3x4. Since I know 3x4 is 12, I will group those first. Then, I will multiply that product by 2 to get the total to be 24.
Associative property
Make and solve an area model for 543x21.
What is 11,403?
Write all partial products for 48x23.
Example: 12x34=(10x30)+(10x4)+(2x30)+(2x4)
What is (40x20)+(40x3)+(8x20)+(8x3)?
List the three properties of multiplication that we've learned about
Commutative, associative, and distributive property