# Order of operations

5 videos
3 skills
Mathematics wouldn't be so useful if, interpreted in different ways, the same expression could be viewed to represent different values. To combat this issue, the mathematical community defined "orders of operations" to remove ambiguity when evaluating an expression. Our acronym is PEMDAS: parentheses, exponents, multiplication, division, addition, and subtraction. Get it? Of course you. Let's talk more about order of operation and how will apply it.

### Introduction 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 example

VIDEO 4:27 minutes
Work through a challenging order of operations example with only positive numbers.

### Order of operations: PEMDAS

VIDEO 5:20 minutes
Work through another challenging order of operations example with only positive numbers.

### Order of operations examples: exponents

VIDEO 3:34 minutes
Exponents are near the top of the food chain when it comes to order of operations. Let's do some examples together.

### Order of operations example: putting it all together

VIDEO 4:36 minutes
Simplify this tricky expression using the order of operations.   Expression include negative numbers and exponents.

### Order of operations

PRACTICE PROBLEMS

### Evaluating expressions with exponents

PRACTICE PROBLEMS

### Evaluating exponent expressions word problems

PRACTICE PROBLEMS