5.4F 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 'evaluate' mean in mathematics?

Back

To evaluate means to calculate the value of an expression by performing the operations according to the Order of Operations.

Front

What is a mathematical expression?

Back

A mathematical expression is a combination of numbers, variables, and operators (such as +, -, ×, ÷) that represents a value.

Front

What is the value of 5 + 3 × 2?

Back

The value is 11. (First, multiply 3 × 2 = 6, then add 5 + 6 = 11.)

Front

What is the value of (4 + 2) × 3?

Back

The value is 18. (First, calculate inside the parentheses: 4 + 2 = 6, then multiply: 6 × 3 = 18.)

Front

How do you represent subtraction in an expression?

Back

Subtraction is represented by the minus sign (-). For example, in the expression 10 - 4, 10 is decreased by 4.

Front

What is the result of 12 ÷ (3 + 3)?

Back

The result is 2. (First, calculate inside the parentheses: 3 + 3 = 6, then divide: 12 ÷ 6 = 2.)

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to reduce it to its simplest form by performing all possible operations.

Front

What is the value of 27.4 + [(182 - 50) - (36 + 2.09)]?

Back

The value is 121.31.

Front

What expression represents the amount of money Ezequiel had left after spending?

Back

$29 - ($16 + $4) represents the amount of money Ezequiel had left.