Possible or Impossible?

Absolute Value and the Opposites of Numbers

Formative Assessment

Summary of the Math: Absolute Value and the Opposites of Numbers

Read and Discuss

  • Absolute value: The distance a number is from 0 on a number line. The symbol |a| is used to indicate the absolute value of a. |a| is a, if a is positive. |−a| is a, if a is negative.
  • Opposite of a number n: The number that is the same distance from 0 as n but on the other side of 0 on a number line; 0 is its own opposite. The opposite of a is −a.

Can you:

  • Write a definition for the terms absolute value and opposite of a number?
  • Explain what signs a number and its opposite have?
  • Explain what sign the absolute value of a number has?