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A Preview of Properties

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Presentation on theme: "A Preview of Properties"— Presentation transcript:

1 A Preview of Properties
By: Ms. Oliva’s 8th grade Math Members

2 Commutative Property of Addition
= a+b = b+a = = 7

3 Commutative Property of Multiplication
= A (BC)=(BC) A 13(6 x 2)=(6 x 2)13 13 x 12 = 12 x 13 156 = 156

4 Associative Property of Addition
= (a + b) + c = a + (b + c) (7 + 5) + 4 = 7 + (5 + 4) = 16 = 16

5 ASSOCIATIVE PROPERTY OF MULTIPLICATION
(ab)c = a(bc) (4 x 7)2 = 4 (7 x 2) 28 x 2 = 4 x 14 56 = 56

6 Distributive Property
= a (b + c) = ab + ac 7 (5+2) = 7(5) + 7(2) 7 (7) = 49 = 49

7 Practice Quiz 1 47 + (95 + 117) = (47 + 95) + 117
Decide what property is shown. Click on your choice. 47 + ( ) = ( ) + 117 A. Associative Property B. Commutative Property C. Distributive Property

8 OOPS!! Don’t Cry— Try Again

9 Awesome! It looks like you planted just the right answer!
On to the next one

10 Practice Quiz 2 (8 x 7)4 = 8(7 x 4) A. Associative Property
Decide what property is shown. Click on your choice. (8 x 7)4 = 8(7 x 4) A. Associative Property B. Commutative Property C. Distributive Property

11 Oh my gosh!! That’s not right!
Try Again

12 Terrific!! C’est Magnifique!
On to the next one

13 Practice Quiz 3 8 (7 – 3) = (8 – 7) (8 – 3) A. Associative Property
Decide what property is shown. Click on your choice. 8 (7 – 3) = (8 – 7) (8 – 3) A. Associative Property B. Commutative Property C. Distributive Property

14 OOPS!! Hey! Don’t sweat it! Try Again

15 Fantastic!! You’re on your way!
On to the next one

16 Practice Quiz 4 15 x 4 = 4 x 15 A. Associative Property
Decide what property is shown. Click on your choice. 15 x 4 = 4 x 15 A. Associative Property B. Commutative Property C. Distributive Property

17 OOPS!! I think you zipped through that one too fast!
Try Again

18 Way to Go!! You’re just blooming!
On to the next one

19 Practice Quiz 5 17(x + y) = 17x + 17y A. Associative Property
Decide what property is shown. Click on your choice. 17(x + y) = 17x + 17y A. Associative Property B. Commutative Property C. Distributive Property

20 ARGH!! Better luck next time, mate!
Try Again

21 Marvelous!! You really had your eye on that one!
On to the next one

22 Practice Quiz 6 (8x – 2) + 14 = 14 + (8x – 2) A. Associative Property
Decide what property is shown. Click on your choice. (8x – 2) + 14 = 14 + (8x – 2) A. Associative Property B. Commutative Property C. Distributive Property

23 OOPS!! That was a ghostly error!
Try Again

24 Excellent!! You must have eaten your veggies!
On to your last slide!

25 You’re on Your Own 14 (2 – 6) = (14 x 2) – (14 x 6) 3x + 17 = 17 + 3x
Answers *Number your paper from 1-8. Write assoc., comm., or dist., to correctly label the property of each. 14 (2 – 6) = (14 x 2) – (14 x 6) 3x + 17 = x 12(4 + 8) = (12 x 4) + (12 x 8) (6 x 5) x 9 = 6 x (5 x 9) 3 + (20 + 4) = (3 + 20) + 4 (11 – 4) + 12 = 12 + (11 – 4) 10( ) = (10 x 22) + (10 x 12) 2x + (3x + 3x) = (2x + 3x) + 3x

26 The Answers dist. (Distributive Property) comm. (Commutative Property)
assoc. (Associative Property)


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