Khan Academy
Khan Academy: Adding Negative Numbers on the Number Line
Practice matching number line diagrams to addition expressions involving negative numbers.
Khan Academy
Khan Academy: Adding & Subtracting Negative Numbers
Practice solving addition and subtraction problems with integers (positive and negative numbers).
Khan Academy
Khan Academy: Absolute Value to Find Distance
Practice taking the absolute value of the difference of two numbers to find the distance between those numbers. Apply this principle to solve word problems.
Khan Academy
Khan Academy: Absolute Value to Find Distance Challenge
Solve conceptually challenging absolute value problems. In order to succeed at these problems, you'll need to remember that the absolute value of the difference of two numbers is the distance between those numbers.
Cuemath
Cuemath: Absolute Value
This reference tool explores absolute value. Provides a definition, examples, and practice questions with answers.
Quia
Ixl Learning: Absolute Value
Brush up on your math skills relating to absolute value then try some practice problems to test your understanding.
PBS
Pbs Learning Media: Math + Arts: The Absolute Value of Dance
In this lesson, students use a graph to choreograph a dance figure. Media resources and teacher materials are included.
Help Algebra
Help algebra.com: Addition & Subtraction of Real Numbers
Using a number line, the technique for adding and subtracting real numbers is demonstrated. Notation and calculator use is also touched on at the end of the lesson.
Shmoop University
Shmoop: Basic Operations: Absolute Value
Students learn about absolute value. The resource consists of notes, step-by-step examples, and practice problems with solutions.
Doina Popovici
Math Play: Absolute Value Millionaire Game
Practice finding the absolute value of different numbers and expressions in this millionaire-style game.
Math Is Fun
Math Is Fun: Absolute Value
Find the definition of absolute value as well as many simple examples.
Free Math Help
Free Math Help: Absolute Value
Students learn about the absolute value of a number. The lesson consists of definitions, examples, and additional resources.
Wyzant
Wyzant: Simplifying Multiple Signs Worksheet
Dealing with multiple positive and negative signs in an algebra equation can be a challenge for some students. This inter-active quiz from WyzAnt provides 20 multiple-sign equations and their answers for students to test their knowledge.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Absolute Value
Find a quick, concise explanation of absolute value. Examples are included to help you understand this topic.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Multiply and Divide With Negatives
Find a quick, concise explanation of how to multiply and divide with negative numbers. An example is given and clearly explained for each.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Number Line
Find a quick, concise explanation of a number line. Several examples are given and clearly explained.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Whole Numbers
Find a quick, concise explanation of whole numbers using a diagram. An example is given and clearly explained.
Free Math Help
Free Math Help: Algebra Lesson: Rational Numbers
Learners examine the set of real numbers. The resource includes detailed explanations about rational and irrational numbers. It provides example problems.
Shmoop University
Shmoop: Basic Operations: Subtracting Integers
Students learn how to subtract integers. The resource consists of notes, detailed examples, and practice problems with solutions.
Other
Math Only Math: Subtraction of Rational Numbers
Discusses how to subtract rational numbers through detailed explanations of the steps for solving six problems.