Order of Operations

Introduction

Understanding Order of Operations

Order of Operations - An Overview

Order of operations is a set of rules used to determine the
sequence in which operations are performed in a math
expression.

Why Order of Operations
Matters

Importance of following a specific
order in math expressions.

● Example: Without order, different people might get different answers to the same problem.

Multiple Choice

Order of operations is

• The grouping of similar terms in an equation

• set of rules used to determine the sequence in which operations are performed

• Math rules that about Multiplication

• The arrangement of numbers in a mathematical expression

Multiple Choice

Why is it important to follow the order of operations in mathematics?

• To make math problems more challenging

• To confuse students and teachers

• To ensure everyone gets the same answer to a given problem

• To save time and skip unnecessary steps

PEMDAS Acronym

Introduce the acronym PEMDAS.

●P: Parentheses

●E: Exponents

●M/D: Multiplication and Division (from left to right)

●A/S: Addition and Subtraction (from left to right)

Multiple Choice

What does the acronym PEMDAS stand for in the context of order of operations?

• Prime, Even, Multiplication, Division, Addition, Subtraction

• Power, Exponential, Multiplication, Division, Addition, Subtraction

• Plus, Equal, Minus, Division, Addition, Square

• Parentheses, Exponents, Multiplication, Division, Addition, Subtraction

Understanding
Parentheses

Explain that operations inside parentheses should
be done first.

●Example: 4 + (3 x 2) = 4 + 6 = 10

Multiple Choice

5 x (6-3)

• 19

• 27

• 15

• 23

Handling Exponents

Discuss the meaning of exponents
(e.g., 3^2 means 3 multiplied by
itself).

Example: 2 + 3^2 = 2 + 9 = 11

Multiple Choice

$$6^2\ -92\div4$$  

What is the order of operations for solving this problem?

• Subtract, Divide, Exponent

• Exponent, Subtract, Divide

• Exponent, Divide, Subtract

Multiplication and
Division

●Discuss that multiplication and
division should be performed from left
to right.

●Example: 6 ÷ 2 x 3 = 3 x 3 = 9

Addition and Subtraction

Explain that addition and subtraction
should be performed from left to right.

●Example: 8 - 2 + 5 = 6 + 5 = 11

Multiple Choice

Which operation is performed FIRST?
(13 - 1) + 4

• addition

• subtraction

• multiplication

Multiple Choice

20 x 2 - (10 - 4)

• 22

• 30

• 34

Multiple Choice

Solve:

13 - 2 x 4 =

• 4

• 24

• 5

• 44

Multiple Choice

Find and explain the error.    
 5 - 3 + 2
     5 - 5
        0

• There is no error.
• Addition was done first and you should have subtracted first
• There is a subtraction error

Multiple Choice

What would be my first step? 3 + 4 x 6 - 4 =

• addition
• multiplication
• subtraction
• exponents