Transcript Addition Properties

Lesson by Vi Thai
Properties Unit


Middle School
This lesson on the properties of addition
should come after students have done a
quick review of addition. This power point
presentation is to accompany the
introductory lesson.
Commutative Property of Addition
Algebraically:
a + b = _____
b+a
Frogs + Flies = ___________
Flies + Frogs
Shoes + Socks = _____________
Socks + Shoes
Numerically:
5 + 3 = _____
3+5
8=8
6 + 8 = _____
8+6
14 = 14
Associative Property of Addition
Algebraically: (a + b ) + c = ____________
a + (b + c)
(Chickens + Ducks) + Horses = _________________________
Chickens + (Ducks + Horses)
(Keyboard + Mouse) + Monitor = _________________________
Keyboard + (Mouse + Monitor)
Numerically: (3 + 5 ) + 7 = ____________
3 + (5 + 7)
15 = 15
(2 + 7 ) + 5 = ____________
2 + (7 + 5)
14 = 14
Distributive Property
Multiplication over Addition
Algebraically: 5 * (a + b ) = ________
5a + 5b
5 * (Apples + Bananas) = 5 Apples + 5 Bananas
5(3) + 5(4) = 15
______
5 * (3 + 4) = _________
+ 20 = ___
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Let’s do a quick review!
In the next few slides, you will be asked to
complete each question with the correct
answer. Choose a, b, c or d. Good luck!

The Commutative Property States that:

a+b=
a.
a+b
c.
b–a
b.
b+a
d.
a–b
Correct!


The Commutative Property states:
a+b=b+a
Go to the next question!
Sorry!

Your answer is incorrect! Please try again!

The Associative Property States that:

a + (b + c) =
a.
(a + b + c)
c.
(a + c) + b
b.
(a + b) - c
d.
(a + b) + c
Correct!


The Associative Property states:
a + (b + c) = (a + b) + c
Go to the next question!
Sorry!

Your answer is incorrect! Please try again!

The Distributive Property states:
2 * (x + y) =
a.
2x + y
c.
2x + 2y
b.
x + 2y
d.
2x – 2y
Sorry!

Your answer is incorrect! Please try again!
Correct!


The Distributive Property states:
2 * (x + y) = 2x + 2y
Great job! You have completed the review!
END