Pre-Algebra Examples

$| 12 - 3 |$

Step 1

Subtract $3$ from $12$ .

$| 9 |$

Step 2

The absolute value is the distance between a number and zero. The distance between $0$ and $9$ is $9$ .

$9$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$