Addition & Subtraction Equations lesson

Presentation

•

Mathematics

•

6th - 7th Grade

•

Medium

•

CCSS

6.EE.B.7, HSA.REI.A.1, 7.EE.B.4A

Standards-aligned

Erika Miller

Used 15+ times

FREE Resource

6 Slides • 10 Questions

Addition & Subtraction Equations

I can solve one-step equations involving addition and subtraction.

Poll

I have completed the "asynchronous" "hybrid school" "homework"

(select all that apply)

1. Writing Equations Warm-up

1. Writing Equations Instruction

1. Writing Equations Quiz (started in class)

2. Adding & Subtracting Equations Warm-up

2. Adding & Subtracting Equations Instruction

Multiple Select

WARM-UP

Which of the following have equivalent solutions?

(Select 3 options)

2 + x = 5

x + 1 = 4

9 + x = 6

x + (-4) = 7

-5 + x = -2

Open Ended

How are equations like a balance scale?

Type response here

Solving Equations

Key Ideas

Rearrange the equation to "Isolate" the variable

Rearrange the equation until the variable is by itself on one side of the equal sign and all the known values are on the other side

When rearranging - follow the "GOLDEN RULE OF ALGEBRA"

Pause

Let's check out some balance scales!

Open Ended

In the equation x - 5 = 20,

How many "zero pairs" would you need to "isolate" the variable on the right?

Type response here

Multiple Select

"Undo" the operation tied to the variable using the inverse.

Which are inverse operations? (Select 2)

Addition & Multiplication

Addition & Subtraction

Multiplication & Subtraction

Multiplication & Division

Multiple Choice

What would be the first step to solve this equation?

x\ -\ \frac{2}{3}=\frac{5}{6}

Add 2/3 to both sides

Add 5/6 to both sides

Subtract 2/3 from both sides

Subtract 5/6 from both sides

Multiple Choice

What would be the first step to solve this equation?

3.7\ =\ x\ +\ \left(-5\right)

Add 3.7 to both sides

Add 5 to both sides

Subtract 3.7 frim both sides

Subtract 5 from both sides

Multiple Select

Diagram

(Select 2 options)

C = $10.21

C = $29.79

C = The cost of Pablo's lunch

C = The change Pablo received

Open Ended

Error Analysis 1

Type response here

Open Ended

Error Analysis 2

Type response here

Addition & Subtraction Equations

I can solve one-step equations involving addition and subtraction.

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