Order of Operations

Front

What is the Order of Operations?

Back

The Order of Operations is a set of rules that determines the sequence in which calculations are performed in a mathematical expression. The order is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right). Often remembered by the acronym PEMDAS.

Front

What does PEMDAS stand for?

Back

PEMDAS stands for Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right). It is a mnemonic to remember the order of operations.

Front

Calculate: 3 + 5 × 2

Back

According to the Order of Operations, first perform multiplication: 5 × 2 = 10, then add: 3 + 10 = 13.

Front

Calculate: (4 + 6) × 2

Back

First, solve the parentheses: 4 + 6 = 10, then multiply: 10 × 2 = 20.

Front

What is the value of the expression 9 + (12 - 10)?

Back

11. First, solve the parentheses: 12 - 10 = 2, then add: 9 + 2 = 11.

Front

Calculate: 7 + 8 - 2

Back

First, perform addition: 7 + 8 = 15, then subtract: 15 - 2 = 13.

Front

If Sam bought two CDs for $13 each and paid $3 in sales tax, how much did he pay in total?

Back

Total cost = (2 × 13) + 3 = 26 + 3 = $29.

Front

What is the expression to show the total amount paid for three cans of tennis balls at $4 each with $0.95 sales tax?

Back

The expression is 3 × 4 + 0.95.

Front

What is the first step in solving the expression 5 + 3 × 2?

Back

The first step is to perform the multiplication: 3 × 2 = 6.

Front

What is the value of the expression 10 - (3 + 2)?

Back

First, solve the parentheses: 3 + 2 = 5, then subtract: 10 - 5 = 5.