Pre-Algebra Examples

$2 - 20 - (- 10) + 12$

Step 1

Multiply $- 1$ by $- 10$ .

$2 - 20 + 10 + 12$

Step 2

Subtract $20$ from $2$ .

$- 18 + 10 + 12$

Step 3

Add $- 18$ and $10$ .

$- 8 + 12$

Step 4

Add $- 8$ and $12$ .

$4$

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