Absolute Value of a Number

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Taught by YourMathGal
  • Currently 4.0/5 Stars.
2347 views | 2 ratings
Meets NCTM Standards:
Lesson Summary:

In this lesson, Julie Harland explains what absolute value is and how to calculate it. Absolute value is the distance from a number to zero on a number line, and it is always positive since distance cannot be negative. The lesson includes examples of how to calculate the absolute value of both positive and negative numbers, as well as expressions. To simplify an absolute value expression, you need to first simplify what is inside the absolute value brackets.

Lesson Description:

Learn what absolute value of a number means and how to compute absolute value problems.

More free YouTube videos by Julie Harland are organized at http://yourmathgal.com

Questions answered by this video:
  • What is absolute value?
  • How do you find the absolute value of a number?
  • What is |-4|?
  • What is the absolute value fo -4?
  • What does absolute value mean on a number line?
  • Why can't absolute value be negative?
  • How is absolute value like distance?
  • What is |-2|?
  • What is the absolute value of 3?
  • What is the absolute value of -1/2?
  • What is |5.6|?
  • What is |0|?
  • How do you find the absolute value of an expression?
  • How do you find |5 - 2|?
  • How do you find |3 * 7|?
  • Staff Review

    • Currently 4.0/5 Stars.
    This lesson is a good basic introduction to absolute value. Several example problems are shown and the absolute value is found for each problem. The concept of absolute value is also explained on a number line. This is a great place to start when first learning about absolute value.
  • apsgl

    • Currently 5.0/5 Stars.
    She explained this topic in a very simple and understanble way.