pemdas, evaluating, combining like terms,...
TRANSCRIPT
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
PEMDAS, Evaluating, Combining like terms, Properties.notebook
2
September 18, 2014
Jul 91:40 PM
Aug 42:16 PM
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
PEMDAS, Evaluating, Combining like terms, Properties.notebook
4
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.
PEMDAS, Evaluating, Combining like terms, Properties.notebook
5
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
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
PEMDAS, Evaluating, Combining like terms, Properties.notebook
7
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
PEMDAS, Evaluating, Combining like terms, Properties.notebook
8
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:
PEMDAS, Evaluating, Combining like terms, Properties.notebook
9
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
PEMDAS, Evaluating, Combining like terms, Properties.notebook
10
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
PEMDAS, Evaluating, Combining like terms, Properties.notebook
11
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) =________
PEMDAS, Evaluating, Combining like terms, Properties.notebook
12
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)
PEMDAS, Evaluating, Combining like terms, Properties.notebook
13
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
PEMDAS, Evaluating, Combining like terms, Properties.notebook
14
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)
PEMDAS, Evaluating, Combining like terms, Properties.notebook
15
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
PEMDAS, Evaluating, Combining like terms, Properties.notebook
16
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
PEMDAS, Evaluating, Combining like terms, Properties.notebook
17
September 18, 2014
Homework:
Homework:
PEMDAS, Evaluating, Combining like terms, Properties.notebook
18
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
PEMDAS, Evaluating, Combining like terms, Properties.notebook
19
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
PEMDAS, Evaluating, Combining like terms, Properties.notebook
20
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
PEMDAS, Evaluating, Combining like terms, Properties.notebook
21
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
PEMDAS, Evaluating, Combining like terms, Properties.notebook
22
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)
PEMDAS, Evaluating, Combining like terms, Properties.notebook
23
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
PEMDAS, Evaluating, Combining like terms, Properties.notebook
24
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
PEMDAS, Evaluating, Combining like terms, Properties.notebook
25
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
PEMDAS, Evaluating, Combining like terms, Properties.notebook
26
September 18, 2014
Jul 911:21 AM
Unit 1: Basic AlgebraQuiz #1: PMEDAS, Evaluating Expressions, Properties, and Combinding like terms