Download 4.2 Using the Distributive Property

4.2 Using the Distributive Property
20 = 4(5)
= 4(2 + 3) or 4(10 – 5)
Any whole number can be written
as the product of two numbers.
One of those numbers can be
written as an equivalent sum or
difference of two whole numbers.
This is called the
Distributive Property
___________________________________.
Example:
+ 2
2
= 2
5
3
( )
sum of two
terms
3
( )
(
(
(
+
)
)
)
product of
two factors
You Try!
Write 45 as a whole number multiplied by a sum or
difference equal to the other factor.
( )
(
OR
( )
(
)
)
5
Problem 4.2 Review
 You can use the area of a rectangle, the
Distributive Property, and what you know
about place value to find products.
 For example: Use rectangles to find the
product of 32 and 24.
20
30
30 x 20
+ 4
30
x
4
+
2
20 x 2
2x4
 Break up each number into the sum of
two whole numbers and multiply the parts.