## Absolute Value and the Opposites of Numbers

## Formative Assessment

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

Read and Discuss

The distance a number is from 0 on a number line. The symbol |*Absolute value*:*a*| is used to indicate the absolute value of*a*. |*a*| is*a*, if*a*is positive. |−*a*| is*a*, if*a*is negative.The number that is the same distance from 0 as*Opposite of a number n*:*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?