a preview of properties by: ms. oliva’s 8 th grade math members
TRANSCRIPT
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A Preview of Properties
By: Ms. Oliva’s 8th grade
Math Members
![Page 2: A Preview of Properties By: Ms. Oliva’s 8 th grade Math Members](https://reader036.vdocument.in/reader036/viewer/2022062314/56649e8f5503460f94b9376c/html5/thumbnails/2.jpg)
Commutative Property of Addition
=
a+b = b+a 3+4 = 4+3
7 = 7
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Commutative Property of Multiplication
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Associative Property of Addition
=
(a + b) + c = a + (b + c)
(7 + 5) + 4 = 7 + (5 + 4)
12 + 4 = 7 + 9
16 = 16
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ASSOCIATIVE PROPERTY OF MULTIPLICATION
(ab)c = a(bc)(4 x 7)2 = 4 (7 x 2)
28 x 2 = 4 x 1456 = 56
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Distributive Property
a (b + c) = ab + ac
7 (5+2) = 7(5) + 7(2)
7 (7) = 35 + 14
49 = 49
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Practice Quiz 1
Decide what property is shown. Click on your choice.
47 + (95 + 117) = (47 + 95) + 117
C. Distributive Property
B. Commutative Property
A. Associative Property
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OOPS!!
Don’t Cry— Try Again
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Awesome! It looks like you planted just the
right answer!
On to the next one
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Practice Quiz 2
Decide what property is shown. Click on your choice.
(8 x 7)4 = 8(7 x 4)
C. Distributive Property
B. Commutative Property
A. Associative Property
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Oh my gosh!! That’s not right!
Try Again
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Terrific!! C’est Magnifique!
On to the next one
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Practice Quiz 3
Decide what property is shown. Click on your choice.
8 (7 – 3) = (8 – 7) (8 – 3)
C. Distributive Property
B. Commutative Property
A. Associative Property
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OOPS!! Hey! Don’t sweat it!
Try Again
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Fantastic!! You’re on your
way!
On to the next one
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Practice Quiz 4
Decide what property is shown. Click on your choice.
15 x 4 = 4 x 15
C. Distributive Property
B. Commutative Property
A. Associative Property
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OOPS!! I think you zipped through that one too fast!
Try Again
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Way to Go!!You’re just blooming!
On to the next one
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Practice Quiz 5
Decide what property is shown. Click on your choice.
17(x + y) = 17x + 17y
C. Distributive Property
B. Commutative Property
A. Associative Property
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ARGH!! Better luck next time, mate!
Try Again
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Marvelous!!You really had your
eye on that one!
On to the next one
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Practice Quiz 6
Decide what property is shown. Click on your choice.
(8x – 2) + 14 = 14 + (8x – 2)
C. Distributive Property
B. Commutative Property
A. Associative Property
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OOPS!! That was a ghostly error!
Try Again
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Excellent!!You must have
eaten your veggies!
On to your last slide!
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You’re on Your Own*Number your paper from 1-8. Write assoc., comm., or dist., to
correctly label the property of each.
1) 14 (2 – 6) = (14 x 2) – (14 x 6)
2) 3x + 17 = 17 + 3x
3) 12(4 + 8) = (12 x 4) + (12 x 8)
4) (6 x 5) x 9 = 6 x (5 x 9)
5) 3 + (20 + 4) = (3 + 20) + 4
6) (11 – 4) + 12 = 12 + (11 – 4)
7) 10(22 + 12) = (10 x 22) + (10 x 12)
8) 2x + (3x + 3x) = (2x + 3x) + 3x
Answers
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The Answers
1) dist. (Distributive Property)
2) comm. (Commutative Property)
3) dist. (Distributive Property)
4) assoc. (Associative Property)
5) assoc. (Associative Property)
6) comm. (Commutative Property)
7) dist. (Distributive Property)
8) assoc. (Associative Property)