Krista King Math
Signed Numbers, Addition and Subtraction
Take the fear out of signed numbers. An educational video explains signed numbers as keeping the sign when both are the same, and offers tricks for what to do when one is positive and the other is negative.
Krista King Math
Opposite of a Number
While the standards don't call for negative numbers to be taught before the sixth grade, many students benefit from learning the concept earlier. A video explains what teachers mean by the opposite of a number. It includes absolute...
Other
Algebra2 Go: Prealgebra: Absolute Value & the Opposite of a Number
Concept demonstration video [8:26] explains how to find the opposite and the absolute value of a given number. A number line is used to help show the distance from zero.
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Adding Negative Numbers
This video shows addition of negative numbers on a number line, using absolute values. Practice problems are included. [5:41]
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Points on a Number Line
This video shows how to plot fractions, negative numbers, decimals, and fractions on a number line. Practice problems are available. [1:58]
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Ordering Negative Numbers
This video shows ordering of negative numbers by relating them to their positions on a number line. Practice problems are available. [2:47]
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Adding, Subtracting Negative Numbers
This video teaches addition and subtraction of negative numbers using a number line. Practice problems are available. [9:16]
Khan Academy
Khan Academy: Algebra: Comparing Absolute Values
A video explaining what the absolute value of an integer is and comparing absolute values with each other. Practice problems available. [4:07]
Khan Academy
Khan Academy: Algebra: Absolute Value and Number Lines
A review of what an absolute value is and a step-by-step demonstration on how to plot absolute values on a number line. Practice problems available. [5:39]
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Negative Numbers Introduction
This video shows how to think about and represent negative numbers using a number line. Practice problems are available. [9:36]
Khan Academy
Khan Academy: Algebra: Absolute Value 1
A step-by-step demonstration on how to list absolute value quantities from smallest to largest on a number line. Practice problems available. [3:22]
Khan Academy
Khan Academy: Algebra: Absolute Value of Integers
A short video explaining that an absolute value of an integer is its distance from zero. Practice problems available. [2:22]
Other
Math Ops: Using Absolute Value to Combine Integers
In this audio lesson students learn how to use absolute value to combine integers. Adobe Flash Player is required.
Virtual Nerd
Virtual Nerd: Rules for Using Absolute Value to Add Integers
Student learn how to add integers while using absolute value while watching a teacher created video. Students learn to add two integers that have the same sign and to add two integers with different signs.
Math Mammoth
Math Mammoth: Integers Lesson: Solved Examples, Part 2
Models how to solve integer problems on absolute value and on the dilation of a triangle. [4:25]
Khan Academy
Khan Academy: Algebra I Worked Examples: Absolute Value Inequalities 2
The learning exercise is a video that examines absolute value inequalities. Students watch an example on graphing absolute value inequalities on a number line.
Khan Academy
Khan Academy: Adding Numbers With Different Signs
Demonstrates with the help of a number line how to add positive and negative 2-digit numbers. [5:32]
Khan Academy
Khan Academy: Adding & Subtracting Negative Numbers
Demonstrates with the help of a number line how to add and subtract 1-digit negative numbers. [4:06]
Khan Academy
Khan Academy: Negative Decimals on the Number Line
The video provides examples that require us to interpret a number line in order to locate where our positive and negative decimals should be placed.
Khan Academy
Khan Academy: Negative Numbers, Variables, Number Line
Given a, b, and c shown on the number line, Sal determines if statements like -b < c are true. [4:54]
Khan Academy
Khan Academy: Algebra I Worked Examples: Absolute Value Inequalities
The learning exercise is a video that examines absolute value inequalities. Students watch an example on graphing absolute value inequalities on a number line. [13:13]
Khan Academy
Khan Academy: Negative Number Basics: Ordering Negative Numbers
A video showing ordering negative numbers from least to greatest on a number line.
Khan Academy
Khan Academy: Why Subtracting a Negative Equivalent to Adding a Positive
Intuition as to why subtracting a negative number is equivalent to adding the absolute value of that number
Imagine Learning Classroom
Learn Zillion: Understand the Relationship Between Two Negative Numbers
In this lesson, you will learn about the relationship between two negative numbers by finding their location on a number line. [4:02]