Lesson: Order of Operations (+, -, x, /)

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Order of Operations

​( +, -, x, / )

​Objective: Perform the order of operations on numerical expressions in preparation to use in algebraic expressions.

Reorder

Let's see if you remember the ORDER OF OPERATIONS.

Reorder the following in the order of operations.

• Grouping Symbols

• Powers

  (exponents)

• Multiplication & Division

• Addition and Subtraction

1

2

3

4

• 1
• 2
• 3
• 4

​Order of Operations

​Jump around and complete...

​

1 - Complete any math inside grouping symbols

2 - Simplify any powers (exponents)​

3 - Complete any multiplication or division

(this is from left to right)

4 - Complete any addition or subtraction

(this is from left to right)

​Order of Operations

​We are going to START with Addition and Subtraction

​

1 - Complete any math inside grouping symbols

2 - Simplify any powers (exponents)​

3 - Complete any multiplication or division

(this is from left to right)

4 - Complete any addition or subtraction

(this is from left to right)

Multiple Choice

Which operation should I complete first?

5 - 17 + 12 - 8 + 1

• 5 - 17

• 17 + 12

• 12 - 8

• 8 + 1

​EXAMPLE

​5 - 17 + 12 - 8 + 1

​0 - 8 + 1

-8 + 1

​-12 + 12 - 8 + 1

-7

Math Response

Evaluate: 19 - 22 + 9 - 2

Type answer here

Correct Answer: 4

Deg^°

Rad

​Order of Operations

​Jump around and complete...

​

1 - Complete any math inside grouping symbols

2 - Simplify any powers (exponents)​

3 - Complete any multiplication or division

(this is from left to right)

4 - Complete any addition or subtraction

(this is from left to right)

Multiple Choice

Which operation should I complete first?

​5 - 3 × 2 + 8

• 5 - 3

• 3 × 2

• 2 + 8

​EXAMPLE

​5 - 3 × 2 + 8

Multiple Choice

Identify the correct order of operations for this expression:  9 - 4 × 5 + 3

• multiplication, subtraction, addition

• multiplication, addition, subtraction

• subtraction, multiplication, addition

• addition, subtraction, multiplication

• addition, multiplication, subtraction

​EXAMPLE

​4 + 24 ÷ 3 × 2 - 7 × 2

Multiple Choice

Identify the correct order of operations for this expression: 12 ÷ 4 + 22 - 18 ÷ 2 × 9

• division

  division

  multiplication

  addition

  subtraction

• multiplication

  division

  division

  addition

  subtraction

• division

  addition

  subtraction

  division

  multiplication

• division

  division

  multiplication

  subtraction

  addition

Match

Match the expression with its solution.

• 3 + 5 × 18 - 6 ÷ 3

• 3 × 5 + 18 ÷ 6 - 3

• 3 × 5 × 18 - 6 + 3

91

15

267

• 91

• 15

• 267

Poll

Which describes how you feel about this skill?