# Order of operations

3 videos

1 skill

In this tutorial, we'll start by learning why we need order of operations and build all the way up to evaluating challenging order of operations expressions involving negative numbers.

### Intro to order of operations

VIDEO
9:40 minutes

This example clarifies the purpose of order of operations: to have ONE way to interpret a mathematical statement.

### Order of operations: PEMDAS

VIDEO
5:20 minutes

Work through another challenging order of operations example with only positive numbers.

### Order of operations example

VIDEO
4:36 minutes

Simplify this tricky expression using the order of operations. Expression include negative numbers and exponents.

### Order of operations with negative numbers

PRACTICE PROBLEMS

Practice evaluating expressions using the order of operations. Numbers used in these problems may be negative.