1-2 The Order of Operations Objective: Use the order of operations and grouping symbols.

Slides:

Advertisements

Similar presentations

Homework Questions?.

Advertisements

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

A.K.A “BEDMAS”. Order of Operations The Order of Operations is the order in which to solve a mathematical problem. You must solve problems using the order.

43 Order of Operations  ( ) + - X.

IS means = sign Writing Equations: “2 more than twice a number is 5”

Order of Operations Arizona State 8 th Grade Math Standard – Strand 1, Concept 2, PO5 Simplify numerical expressions using the order of operations that.

C EXPONENTS, ORDER OF OPERATIONS, AND AVERAGE Math081 Catherine Conway.

Variables and Expressions Order of Operations Real Numbers and the Number Line Objective: To solve problems by using the order of operations.

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

Do Now 9/9/11 Copy HW in your planner. Copy HW in your planner.  Text p. 9 & 10, #8-32 evens, #43-45 all In your journal, simplify the following expression.

Ch 1.3 – Order of Operations

Bell Ringer = – 5 = = ÷ -2 = =6. -7 – (-7) = After you have completed the bell ringer, take out your homework!

HAWKES LEARNING SYSTEMS Students Matter. Success Counts. Copyright © 2013 by Hawkes Learning Systems/Quant Systems, Inc. All rights reserved. Section 1.8.

How do you simplify using order of operations and exponents? Section 1-2.

Order of Operations A rule of precedence in solving mathematical expressions.

ORDER OF OPERATIONS MATH 7 ORDER OF OPERATIONS Do the problem x (-2) What answers did you come up with? Which one is correct and why? Try (-9 +

Welcome to Math 6 ORDER OF OPERATIONS. OBJECTIVE: Each student will understand and use the order of operations.

Order of Operations.

Order of Operations 1-2. Objectives Evaluate numerical expressions by using the order of operations Evaluate algebraic expressions by using the order.

1. Substitute a number for the variable. 2. Perform all operations. 3. Simplify the result. Steps to EVALUATE AN EXPRESSION…

ALGEBRA READINESS LESSON 2-6 Warm Up Lesson 2-6 Warm Up.

Warm Up 1) ) ) 7 – (-23) 4) -8 – (-3) 5) 4(-2) 6) -10(-3) 7) -9(8) 8) 25 ÷ -5 9) -64 ÷ -8 10) -42 ÷ 6 HINTS: #’s 1-2 (Addition) Same.

Intro to Exponents Learn to evaluate expressions with exponents.

Order of Operations Module I, Lesson 1 Online Algebra

From Area Formulas to Algebra

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.

9.3 Order of Operations.

Ch 1.2 Objective: To simplify expressions using the order of operations.

The Order of Operations Chapter Evaluate inside grouping symbols ( ), { }, [ ], | |, √ (square root), ─ (fraction bar) 2.Evaluate exponents 3.Multiply.

ORDER OF OPERATIONS. What is the correct method for solving numerical problems?

Order of Operations Ms. Picard.

HAWKES LEARNING SYSTEMS Students Matter. Success Counts. Copyright © 2013 by Hawkes Learning Systems/Quant Systems, Inc. All rights reserved. Section 7.5.

Do Now 9/10/09 Take out HW from last night. Take out HW from last night.  Text p , #14-32 evens & 36 Copy HW in your planner. Copy HW in your planner.

Day Problems Write an algebraic expression for each phrase.

PRE-ALGEBRA. Lesson 1-2 Warm-Up PRE-ALGEBRA How do you simplify a numerical expression? To simplify a numerical expression, use the order of operations.

Order of Operations PEMDAS DON’T STRESS. Numerical Expression : A mathematical phrase that includes numerals and operational symbols. It does not have.

Order of Operations Jan Sands Butterfly Science & Math 2008.

Music You buy a used guitar for $50. You then pay $10 for each of 5 guitar lessons. The total cost can be found by evaluating the expression 

ORDER OF OPERATIONS How to do a math problem with more than one operation in the correct order.

The Order of Operations The Order of Operations Objective: Use the order of operations and grouping symbols.

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

Order of Operations ~ Use Order of Operations.

Equations and The Order of Operations. Page  2 Section 1: Variables and Expressions  Variables –Are letters or symbols that act as placeholders for.

Order of Operations ( ) + X  When you get dressed, do you put on your shoes or socks first? Why? Explain your thinking.

1-2 The Order of Operations

The Order of Operations

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

WARM-UP 8/29: Simplify: ) )

1-2 The Order of Operations

1 Introduction to Algebra: Integers.

Order of Operations Operations are symbols in math.

Warm-Up Pg. 448 #1-11 (odd).

1-2 The Order of Operations

Accentuate the Negative

1-9 Order of operations and distributive property

Week 1 Real Numbers and Their Properties

43 Order of Operations  ( ) + - X.

Get papers, sit down, and quietly work on bellringer

Chapter 4-2 Power and Exponents

1.1 Symbols and Expressions

Variables and Expressions 1-1

Do Now 9/13/10 Be ready to copy Problem of the Week.

Go over Homework.

What do you think it means? Before:

Do Now 9/10/12 Copy HW in your planner.

So which is the correct answer?

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:

1-2 The Order of Operations Objective: Use the order of operations and grouping symbols.

In most languages, the meaning of words depend on the order: Ex. Sign the check Is not the same as Check the sign

Mathematics is a type of language and it also has a specific order. Ex X 2 What do we do first? Add or multiply? If we add first: X 2 8X 2 16 If we multiply first: X Uh Oh! Which one is the correct answer? Help ! Oh no!

What is PEMDAS? In order to make sure every person gets the same answer to a math problem, mathematicians came up with a rule called the order of operations Parenthesis ( ) [ ] Exponents 2 3 Multiplication X Division ÷ Addition + Subtraction - Whichever comes first from left to right!

How am I supposed to remember that! P l e a s e E x c u s e M y D e a r A u n t S a l l y

Part 1 Using the Order of Operations X 2 What do we do first? PEMDA S Multiply first Then add

To simplify an expression means to replace the expression with the simplest name for its value. Example 1: Simplify ÷ ÷ 3 PEMDAS Divide first Then add

Now you try! 1) X 3 2) 12 ÷ ) 10 – 1 7. Simplify each expression.

When operations have the same rank in the order of operations, do them from left to right. Example 2 Simplify 3 5 – 8 ÷ PEMDAS 3 5 – 8 ÷ multiply & divide from left to right add and subtract from left to right

Try This! Simplify each expression 4) 4 – ÷ 3. 5) ÷

Part 2 Using grouping Symbols Grouping symbols such as parenthesis ( ) and brackets [ ] come first in the order of operations. A fraction bar is also a grouping symbol since: = (4 + 2) ÷ 3 3 Always work inside grouping symbols first!

Order of Operations 1) Work inside grouping symbols. 2) Multiply and divide from left to right. 3) Add and subtract in order from left to right.

Example 3 Simplify 10 ÷ [9 – (2 2)].. 10 ÷ [9 – (2 2)]. 10 ÷ [9 – ] 10 ÷ Multiply in parenthesis. Subtract in brackets. Divide. PEMDAS

You Try! 9) 2[ (13 – 4) ÷ 3] 10)

Let’s do math! Classwork: pg. 11 #’s 1-9 odd Homework: pg. 11 #’s 10 – 34 even