1. Absolute Value & Order Of Operations
Expressions Lesson 1

2. The distance from zero on a number line
Absolute Value – Notes
The distance from zero on a number line +3 +3
│ │
What symbol means Absolute Value?

3. Absolute value – practice
𝟗+𝟖=𝟏𝟕
𝟐𝟖−𝟐𝟔=𝟐
𝟑−𝟏𝟗=−𝟏𝟔
Positive number remain positive, negative numbers become positive!
Note that the operational symbol ( + and - ) does not change!

4. Who is correct? Tessa, I think that 𝟒∗𝟐+𝟓=𝟏𝟑. Hey Meghan,
Did you know that
𝟒∗𝟐+𝟓=𝟐𝟖?

5. Order of Operations – Notes
Simplifying an expression using a specific order
L R P
Parentheses (Group) E
Exponents
Top MD
Multiplication/Division
Bottom AS
Addition/Subtraction

6. Order of Operations – Practice
None
L R E
𝟏𝟕−𝟑𝟐÷𝟒+𝟔 MD
𝟏𝟕−𝟖+𝟔 AS
𝟏𝟕−𝟖+𝟔 𝟏𝟓

7. Order of Operations – Practice
Top
Bottom
Bottom
Top
Final P
𝟐𝟎 −𝟒 =−𝟓
𝟕−𝟒 +𝟏𝟕
None E
𝟑+𝟏𝟕
None MD
−𝟏𝟒+𝟏𝟎
None AS 𝟐𝟎 −𝟒
L R

8. Order of Operations – Practice
Absolute Value is treated as a Parentheses or Grouping.
L R P
(𝟑) 𝟑 − 𝟐𝟓−𝟔𝟒 ÷𝟑
(𝟑) 𝟑 − −𝟑𝟗 ÷𝟑 E
𝟐𝟕−𝟑𝟗÷𝟑 MD
𝟐𝟕−𝟏𝟑 AS 𝟏𝟒

9. Order of Operations – Practice
Inside Out P
𝟐𝟎 𝟐 ÷ 𝟑 −𝟒 𝟐 +𝟐
𝟐𝟎 𝟐 ÷ 𝟑 𝟏𝟔 +𝟐 E
L R
𝟐𝟎 𝟐 ÷ 𝟒𝟖+𝟐
𝟐𝟎 𝟐 ÷ 𝟓𝟎 MD
𝟒𝟎𝟎÷ 𝟓𝟎 AS 𝟖