AF 1.1.  We will solve expressions with variable What are we going to do today?

Slides:

Advertisements

Similar presentations

The Order of Operations Solve: Objective: You will be able evaluate expressions using the order of operations.

Advertisements

Unit 1: Language & Notation of Algebra. What is a variable? – a letter that represents a # (value) What is a constant? – A value (#) that does not change.

OBJECTIVES The students will perform the order of operations on integers by following GEMDAS rule.

1. If x = 4, then what is the value of x2?

Adding, Subtracting, Multiplying, and Dividing Integers

Order of Operations. Learning Goals Understand that an expression is a mathematical statement with numbers and operations. (x, +, -, ÷) Use the correct.

Order of Operations with Exponents and Integers

1.2 Order of Operations Students will use order of operations to evaluate expressions. Key Vocabulary: order of operations – rules used to evaluate expressions.

Warm Up Pick a set of four numbers given and make the number 24 from the four numbers. You can add, subtract, multiply and divide. Use all four numbers.

(Fundamental) Order of Operations The order- 1. P arenthesis 2. E xponents 3. M ultiply 4. D ivide 5. A dd 6. S ubtract.

Base: the number that is multiplied Power: the number that is expressed as the exponent Exponent: tell how many times the base is used as a factor Standard.

4-1 6 th grade math Exponents. Objective To write and evaluate exponential expressions Why? To prepare you for higher learning in math and science. To.

Order of Operations. Does the order in which operations are done make any difference? Ex. Which is the correct answer when simplifying x 12? 6+3x12.

ORDER OF OPERATIONS x 2 Evaluate the following arithmetic expression: x 2 Each student interpreted the problem differently, resulting in.

12/2/14 Warm up Evaluating Algebraic Expressions Large to small = multiply 1 ton (T) = 2,000 pounds  B. ¾ T = pounds (lb ) 

Warm up Pick a number between Multiply by 8 Add 30 Minus 14

Evaluating a Variable Expression To evaluate a variable expression:

Order of Operations - rules for arithmetic and algebra that describe what sequence to follow to evaluate an expression involving more than one operation.

Divide. Evaluate power – 3 = – 3 EXAMPLE – 3 = 3 2 – – 3 = 6 – 3 Multiply. Evaluate expressions Multiply and divide from.

1-2 Order of Operations and Evaluating Expressions.

CONFIDENTIAL1 Good Afternoon! Today we will be learning about Review of Expressions, Variables, equations & Functions Let’s warm up : 1) Simplify: 4 x.

Confidential1 Today we will be learning about the "Order of Operations"

Bell Work8/28/14 Distribute. Tuesday’s Homework 1.Any questions? 2.Please pass your homework to the front. Make sure the correct heading is on your paper.

3-1 Warm Up: p. 131 #’s 2 – 6 EVEN ONLY.  An exponent is a shorthand notation that tells how many times a number is multiplied by itself.  Example:

5.2 The Integers; Order of Operations. Sets of Numbers The set of natural numbers or counting numbers is {1,2,3,4,5,6,…} The set of whole numbers is {0,1,2,3,4,5,…}

Notes 2.1 Order of Operations PEMDAS If an expression has only numbers and symbols, it is a numerical expression. If it has a variable it is a variable.

1-2 Exponents and Order of Operation Textbook page 9.

2.8 Inverse of a Sum on Simplifying continued Goal: to simplify expressions involving parenthesis and to simplify with multiple grouping symbols.

Evaluate Is your answer 33 or 19? You can get 2 different answers depending on which operation you did first. We want everyone to get the same.

ABSOLUTE VALUE For each value, write it opposite, then its absolute value.

 1) -5+6  2) 7+ (-8)  3)  4) 8(-3)  5) -9(2)  6) 18/2  7 (-9)/3 1 Algebra II.

1-2 Exponents and Order of Operations Hubarth Algebra.

Powers and Exponents Intro to Algebra Farris.  I can write and evaluate expressions using exponents.

1-2 Exponents and Order of Operations Objectives: 1. To simplify and evaluate expressions and formulas 2. To simplify and evaluate expressions containing.

Variables Symbols used to represent unknown numbers or values.

Do Now: Evaluate

1-1 Variables and expressions

The Order of Operations

WARM UP Page 9 “Check Skills You’ll Need” # 1 – 12.

Variables and Expressions

The following expression represents Joe's grade in math:

Order of Operations Operations are symbols in math.

How do you feel about Long Division?

Algebra Review! Warm-up

Lesson 1.1 How do you evaluate and write variable expressions?

Objective The student will be able to:

ORDER OF OPERATIONS BEMDAS. 1. Brackets - ( ) or [ ]

Division Properties Of Exponents.

Lesson 1.1 How can you analyze data?

Objective The student will be able to:

Objective The student will be able to:

You replace it with its simplest name

Rules in the Order of Operations

Algebra Wednesday 8/11/10.

Objective The student will be able to:

Objective The student will be able to:

Chapter 4-2 Power and Exponents

Objective The student will be able to: use the order of operations to evaluate expressions.

Division Properties Of Exponents.

Objective The student will be able to:

Variables and Expressions 1-1

Objective The student will be able to:

Objective The student will be able to:

Do Now Simplify. 1. 5(7) – (18 – 11)  (40 – 35) (12 – 4)

– 3.4 ANSWER 3.5 ANSWER 1.17.

1.3 Algebraic Expressions

Division Properties Of Exponents.

Ch 1-2 Order of Operations

Bell Work!!! Directions: Write out the exponent in word form. 3^6 6^4

Order of Operations.

Presentation transcript:

AF 1.1

 We will solve expressions with variable What are we going to do today?

 Order of Operations –  Rules to simplify expressions!!! Divide Exponents MultiplyParentheses AddSubtract In your own words, what is the order of operations?

 Order of Operations – rules that tell us which order to go!!! NOTE When we have multiplication and division in the same equation….go from left to right!!!! Ex:16 ÷2 x When we have adding and subtracting in the same equations…go from left to right! Ex: 3+ 4 – 10 x 5

 Simplify the expressions:  (16 – 15) x (13 + 2)  38 – 4 x (3 + 5)

 Variable – is a LETTER or SYMBOL that is used to stand for an unknown number. Example: (y + 2) x – (6 x y) CFU: R-A-J What is a variable?

 Which one of these expressions has a variable?  A. (y+2) x 10  B Show me with your white board  How did know that was the correct answer? Pair share Pick non volunteer RAJ

 By knowing how to solve expressions you will able to:  1. find the answer  2. know how to find higher level questions.  3. will be able to pass the test  4. Do well on CST.  Why is this important to you?  Pair share  Ask for volunteers CST Release question

 Using a brace map we will evaluate the expressions: ExpressionValue when y = 2Value when y = 5 (y + 2) x 10 y = 2 y = 5 Steps: #1: Write the problem down #2: Replace the variable with the number #3: Use the order of operations to solve the problem Order of Operations: P arenthesis E xponents M ultiply D ivide A dd S ubtract CFU How did I know to write 2 in for the y? How did I know which operation to use first? Pair share Pick non volunteers

 Using a brace map we will evaluate the expressions: ExpressionValue when y = 2Value when y = 5 (10 – y) x (y x 2) y = 2 y = 5 Steps: #1: Write the problem down #2: Replace the variable with the number #3: Use the order of operations to solve the problem CFU How did we know to write 2 in for the y? How did we know which operation to use first? Pair share Pick non volunteers

 Using a brace map we will evaluate the expressions: ExpressionValue when y = 2Value when y = 5 (y + 2) x 10 y = 2 y = 5 Steps: #1: Write the problem down #2: Replace the variable with the number #3: Use the order of operations to solve the problem Do on white board How did you know? How did you get that answer?

 What do we call a LETTER or SYMBOL that is used to stand for an unknown number?  On White Board  What did you learn about variables today?  Pair-share, volunteers

 Worksheet. - Alternative Approach