Order of Operations Lesson

Order of Operations Lesson

Algebra 1 Honors

​Objectives:

• ​To state the order of operations.

• ​To evaluate a numerical expression using the order of operations.

Multiple Choice

Evaluate the expression:   $$3+2\cdot4-6\div3$$  

• $$\frac{14}{3}$$  

• $$\frac{5}{3}$$  

• $$-\frac{10}{3}$$  

• 9

• 18

Open Ended

What is the correct order of operations to perform when evaluating a numerical expression?

​PEMDAS

• ​Parentheses

• ​Exponents

• ​Multiplication

• ​Division

• ​Addition

• ​Subtraction

​GEMDAS

• ​Grouping Symbols

• ​Exponents

• ​Multiplication

• ​Division

• ​Addition

• ​Subtraction

Multiple Choice

True or false: Addition ALWAYS comes before subtraction.

• True

• False

Example 1:​ Evaluate.

Multiple Choice

Evaluate $$3\cdot8+2^2-5+15$$  .

• 38

• 8

• 6

• 36

Example 2:​ Evaluate.

Multiple Choice

Evaluate $$2+3\left(5+7\right)^2\div2$$  .

• 650

• 218

• 360

• 1800

Example 3:​ Evaluate.

Multiple Choice

Evaluate $$\frac{4+6\left(2-3\right)}{8-9\left(3-2\right)}$$  .

• -10

• 10

• 2

• -2

Example 4:​ Evaluate.

Multiple Choice

Evaluate $$-2\left|5-3\left(2\right)\right|+5^0$$  .

• -1

• -7

• 9

• -4

Example 5:​ Evaluate.

Multiple Choice

Evaluate $$9-\left[-9+\left(4\cdot2+6\right)\right]+4+2\cdot6$$  .

• 40

• 60

• -48

• 20

Open Ended

3-2-1 Exit Ticket: Describe 3 things that you learned today, 2 questions you still have, and 1 big idea that stuck with you.