Order of Operations (5.OA.1/5.OA.2)

Front

What is the order of operations in mathematics?

Back

The order of operations is a set of rules that determines the sequence in which calculations are performed. The acronym PEMDAS is often used to remember the order: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

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).

Front

How do you solve an expression with parentheses?

Back

You solve expressions with parentheses first, calculating the value inside the parentheses before applying any other operations.

Front

What is the result of 8 + 2 x (5 + 5) using the order of operations?

Back

The result is 28. First, calculate inside the parentheses (5 + 5 = 10), then multiply (2 x 10 = 20), and finally add (8 + 20 = 28).

Front

How do you handle multiplication and division in an expression?

Back

Multiplication and division are performed from left to right as they appear in the expression.

Front

What is the result of 9 x (3 + 5)?

Back

The result is 72. First, calculate inside the parentheses (3 + 5 = 8), then multiply (9 x 8 = 72).

Front

What is the result of (12 + 14) - 9?

Back

The result is 17. First, calculate inside the parentheses (12 + 14 = 26), then subtract (26 - 9 = 17).

Front

How do you solve an expression with both addition and subtraction?

Back

Addition and subtraction are performed from left to right as they appear in the expression.

Front

What is the result of 4,500 - (400 x 10)?

Back

The result is 500. First, calculate inside the parentheses (400 x 10 = 4000), then subtract (4500 - 4000 = 500).

Front

What is the importance of the order of operations?

Back

The order of operations is important because it ensures that everyone calculates expressions in the same way, leading to consistent and correct results.