# 7.U2A.L4.6-Adding and Subtracting Integers using Numberlines

Unit 2:  Lesson 4 through 6
Adding and Subtracting Integers Using a Numberline
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Slide 1: Slide
7th Grade

This lesson contains 10 slides, with interactive quizzes and text slides.

## Items in this lesson

Unit 2:  Lesson 4 through 6
Adding and Subtracting Integers Using a Numberline

#### Slide 2 -Link

What are the rules for putting integers in order?

#### Slide 3 -Mind map

Place the x at the number whose absolute value is 4
X

#### Slide 4 -Drag question

Use the arrows to show the following problem on the number line:   2 + (-5)

#### Slide 5 -Drag question

Use the arrows to show the following problem on the number line:   2 - (-3)

#### Slide 6 -Drag question

Put the steps in order: Add the opposite to solve the following problem-  -2-(-1)
Change subtraction to addition: -2 +(-1)
Replace the negative with its opposite:  -2 + (1)
Use a numberline to represent the problem: -2 +1
-2 + 1 = (-1)

#### Slide 8 -Link

Summary: +/- integers on a numberline
Always start at zero and move to the 1st number in the equation
Move the number of units of the 2nd number
starting point -> 1 + (2)-> number of units to move
If the second number is Positive
1. when adding move right, when subtracting move left
If the second number is Negative
2. when adding move LEFT, when subtracting move right