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PEMDAS, Evaluating, Combining like terms, Properties.notebook 1 September 18, 2014 Sep 84:06 PM WarmUp Using your calculator simplify the following questions: 1) 2) 3) 4) Jul 911:21 AM Unit 1: Basic Algebra Lesson: PEMDAS and Evaluating

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Page 1: PEMDAS, Evaluating, Combining like terms, Properties.notebookmslacoss.weebly.com/uploads/2/7/5/5/27558221/... · PEMDAS, Evaluating, Combining like terms, Properties.notebook 6 September

PEMDAS, Evaluating, Combining like terms, Properties.notebook

1

September 18, 2014

Sep 8­4:06 PM

Warm­UpUsing your calculator simplify the following questions:

1)  2)

3) 4)

Jul 9­11:21 AM

Unit 1: Basic Algebra

Lesson:

PEMDAS

and

Evaluating

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PEMDAS, Evaluating, Combining like terms, Properties.notebook

2

September 18, 2014

Jul 9­1:40 PM

Aug 4­2:16 PM

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PEMDAS, Evaluating, Combining like terms, Properties.notebook

3

September 18, 2014

Aug 28­3:30 PM

Explain the difference between

(­5)2 and ­52

Students will be able to evaluate using the proper order of operations

Aug 4­2:16 PM

Simplify this expression using the proper order of operations. At each step. Write what operation you completed!! Use your 

calculator to check your answer.  

40 ­ 2(6 ­ 4)2

Students will be able to evaluate using the proper order of operations

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PEMDAS, Evaluating, Combining like terms, Properties.notebook

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September 18, 2014

Aug 4­2:16 PM

Simplify each problem using your knowledge of order of operations

 2) 2(20 ­ 32 + 1) ­ (42 ÷ 2 x 3) 1) [3(­2)2 ­ 2(­3)2]3

Students will be able to evaluate using the proper order of operations

Aug 27­3:03 PM

A variable is a letter, for example x, y or z, that represents an unspecified number.

6 + x = 12

To evaluate an algebraic expression, you have to substitute a number for each variable and perform the 

arithmetic operations. 

In the example above, the variable x is equal to 6 since 

6 + 6 = 12. If we know the value of our variables, we can replace the variables with their values and then evaluate 

the expression.

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PEMDAS, Evaluating, Combining like terms, Properties.notebook

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September 18, 2014

Aug 27­3:55 PM

# you want to store

Sto > ALPHA Letter you want

 YOU STILL HAVE TO 

SHOW YOUR WORK!!!!

Remember this Trick!!!!!

How to Store a number in your calculator

Aug 27­3:46 PM

Evaluate the following expression when x = 9:5x + 4

Evaluate the following expression when y = ­2:3 + 7y

Students will be able to evaluate using the proper order of operations

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PEMDAS, Evaluating, Combining like terms, Properties.notebook

6

September 18, 2014

Aug 27­3:46 PM

The power, in watts, consumed by an electric light bulb is given by the formula P = 121x2, where x is the number of amperes of 

electric current passing through it. How much power will this light bulb consume if there is a current of 0.91 amperes passing through it? Round to the 

nearest whole number.

Students will be able to evaluate using the proper order of operations

Aug 27­3:46 PM

Evaluate the following expression when d = 3 and c = 5.9d2 + 4c − 9

Students will be able to evaluate using the proper order of operations

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September 18, 2014

Aug 28­3:38 PM

• Students will be able to evaluate expressions using the proper order of operations

• Students will be able to translate a quantitative verbal phrase into a algebraic expression 

In the second basketball game of the season, Wesley scored two fewer points than three times the number of points he scored in the first game. Let p represent the number of points Wesley Scored in 

the first game.

• Write an expression that can be used to find the number of points scored in the second game.

• If p = 11, find how many points Wesley scored in the second game.

Aug 27­4:09 PM

Let x = 8

Evaluate: 2x + 5Let x =5 and y = ­1

Evaluate: y2 + 3x

Let x = 2, y = ­4 and z = 0

Evaluate: x3 ­ y2 + z

Students will be able to evaluate using the proper order of operations

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September 18, 2014

Aug 28­3:46 PM

Students will be able to evaluate using the proper order of operations

Skyler completed the following problem. Determine if she id correct. If she is not, explain her error and find the correct solution

Evaluate ­2x2 ­ 5y3 if x = ­4 and y =­1

­2(­42) ­ 5(­13)

­2(­16) ­ 5(­1)

32 + 5 

37

Aug 27­4:15 PM

HOMEWORK:

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PEMDAS, Evaluating, Combining like terms, Properties.notebook

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September 18, 2014

Aug 27­4:15 PM

HOMEWORK:

Sep 10­4:38 PM

Answers:

1) 2

2) 1

3) 26

4) 11

5) 2

6) 42

7) 45

8) 6

9) 10 

10) 8

11) 19

12) 1

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PEMDAS, Evaluating, Combining like terms, Properties.notebook

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September 18, 2014

Sep 10­3:21 PM

Warm ­ up1) Evaluate the expression 2m ­ r for r = ­1 and m = 6. 

2) Simplify: 

Jul 9­11:21 AM

Unit 1: Basic Algebra

Lesson:

Properties

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September 18, 2014

Feb 12­7:59 PM

Commutative Property is similar to commuting back and forth to school.

I can identify the Commutative Property

Feb 12­1:28 PM

Commutative Property of Addition

"Add in any order."

Commutative Property of Multiplication

"Multiply in any order."

Example: 3 • 7 = 

a + b = b + a

(a)(b) = (b)(a)

5 + 4 = ________

(2)(9) =________

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September 18, 2014

Feb 12­7:59 PM

Associative Property is similar to Associating with the people sitting next 

to you.

Blahblah blah

Blahblah blah

Blahblah blah

Blahblah blah

Cheating boyfriend/girlfriend!

Associative Property

I can identify the Associative Property

Feb 12­1:28 PM

Associative Property of AdditionWe can group terms in any way.

Associative Property of Multiplication

We can group terms in any way.

Which expression is equivalent to (2 + 3) + 6?Example: (6 + 4) + 5 = 

(6 + 4) + 5 = _________________

A.  (2 ­ 3) + 6 B. (2 • 3) + 6 C. (2/3) + 6 D. 2 + (3 + 6)

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September 18, 2014

Aug 4­1:49 PM

Is Commutative and Associative true under Subtraction and Division?

Distributive Property

I can identify the distributive property

Ex: Passing out homework to everyone in the class

What does it mean to distribute?To give out or distribute

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September 18, 2014

Sep 12­6:27 PM

 is used to multiply a single term and two or more terms inside a set of parentheses. 

a(b + c)  =  a b  +  a c

Distributive Property 

a) 4 ( 2 + a ) = ________________

c) 5 (2x ­ 5) =  __________________

b) ­3 ( 2 + 10b ) =  __________________

I can identify the distributive property

Let's try:

Jul 9­12:59 PM

I can identify the distributive property

You Try!!!a) 6(­3a + 5)

b) x(5x ­ 6)

c) ­(3 ­ 4b)

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September 18, 2014

Jul 9­1:06 PM

d) 2(x2 ­ 3x + 5)

e) ­3x(x2 + 10x ­ 2)

f) ­(x3 ­ 5x ­ 1)

I can identify the distributive property

We Try!!

Feb 12­1:28 PM

Identity Property of AdditionZero added to any number is the number itself.

Identity Property of Multiplication

One multiplied by any number gives the number itself.

Example: 

Example: 

5  +  ____   =  5

6        ____   =  6

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September 18, 2014

Feb 12­1:28 PM

Inverse Property of Addition

"Negate the number and add to get 0."

Inverse Property of Multiplication

"Flip the fraction and multiply to get 1."

Example: 5   +   ____      = 0

Example:   5   •   _____    = 1

Feb 12­8:20 PM

Name the property that each equation illustrates.

(‐3 + 4) + 5 = ‐3 + (4 + 5)b)

2 + 0 = 2c)

3(8 • 0) = (3 • 8)0d)

np = pnf)

p + q = q + pe)

a) ‐ 3 13

‐ = 1

Commutative

Distributive

Associative  Inverse

Identity

Commutative  Inverse

Distributive

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September 18, 2014

Homework:

Homework:

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September 18, 2014

Sep 10­4:43 PM

Answers to Homework1) F

2) D

3) H

4) E

5) I

6) C

7)A

8) J

9) B

10) G

11) No

12) Yes

13) No

14) +3

15) 8b + 7.4a

16) ­20x ­36

17) 12a + 1b + 9c

18) ­2x ­3y

19) 5

20) ­4x ­14y

POD:N. Systems

Warm­Up

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September 18, 2014

Jul 9­11:21 AM

Unit 1: Basic Algebra

Lesson:

Combine

Like Terms

Jul 9­12:01 PM

I can combine like terms

In algebra, "like terms" are terms that have the same variable and powers. The coefficient do not need to match. Drag each term into their "Like Term" column.

2x0

x

­1

2x2

3

­5

­x2

­11x 3x2

7x

­8x

­4x2

#x2x

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September 18, 2014

May 3­3:31 PM

Work with your partner to complete the following problems.The expressions on the right have had their like terms combined. Match each

expression on the left with an expression on the right.

8x - 3x

3x + 9y - 5x

-4x - 5x - 7xy

6xy + 4yz - 3xy + yz

7x2y - 2x2y + 5xy2 -3xy2

-4x - 7xy + 8y

8x + 9y - 5x

a. 5x2y + 2xy2

b. 5x

c. 3x + 9y

d. 3xy + 5yz

e. -2x + 9y

f. -4x -7xy + 8y

g. -9x - 7xy

May 3­12:21 PM

1. -6x + 7x + 13x

2. 5x2 - 9 - 7x2 + 16

3. 3xy + 7x - 8xy + 9x 4. 8a2 + 9a - 9a2 - 17a

Simplify each expression

I can simplify expressions by combing like terms

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September 18, 2014

Aug 27­5:10 PM

I can simplify expressions by combing like terms

Simplify:5(z - 6) + 4z

Aug 27­5:10 PM

I can simplify expressions by combing like terms

Simplify:3(y-6) + 12

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September 18, 2014

Aug 27­5:10 PM

I can simplify expressions by combing like terms

Simplify: 6(5-3t) - 17 + 5t

Aug 27­5:10 PM

I can simplify expressions by combing like terms

Simplify: -6(r-2s) + 3(2r+s)

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September 18, 2014

Aug 27­6:05 PM

Students will be able to add and subtract monomials , as well as using the distributive property

Find the perimeter of this rectangle and simplify that expression.

3m + 1

7m ­ 9 + n

Aug 27­5:10 PM

Students will be able to add and subtract monomials , as well as using the distributive property

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September 18, 2014

Aug 27­5:19 PM

Homework:

Sep 10­4:49 PM

Answers to the Homework

19) ­30n

20) ­4n

21) 3 ­21m

22) 16n + 18

23) ­9 + 7n

24) ­45n + 55

25) 69a ­10

26) 33 ­30m

27) 96x ­70

28) ­8n + 26

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September 18, 2014

Aug 28­4:12 PM

Warm­upAshley has a jar full of math expressions. she reaches in an pulls out a piece of paper that says "7x ­ 3". The next piece says "­3x ­ x". The third piece says "5y + 5x". 

Simplify the total of the 3 expressions. 

Sep 7­1:50 PM

Unit 1: Basics of AlgebraLesson:

Activity

Please find a partner and work on 

the worksheet. Worksheet is due at 

the end of the period

skipping

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September 18, 2014

Jul 9­11:21 AM

Unit 1: Basic AlgebraQuiz #1: PMEDAS, Evaluating Expressions, Properties, and Combinding like terms