Order of Operations Flashcard

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 acronym PEMDAS helps 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

Calculate: 3 + 5 × 2

Back

The answer is 13. (First, multiply 5 × 2 = 10, then add 3 + 10 = 13.)

Front

Calculate: (4 + 6) × 2

Back

The answer is 20. (First, add 4 + 6 = 10, then multiply 10 × 2 = 20.)

Front

Calculate: 8 - 3 + 2

Back

The answer is 7. (Perform from left to right: 8 - 3 = 5, then 5 + 2 = 7.)

Front

What is an expression?

Back

An expression is a combination of numbers, variables, and operators (like +, -, ×, ÷) that represents a value.

Front

What is a mathematical equation?

Back

A mathematical equation is a statement that two expressions are equal, often containing an equals sign (=).

Front

Calculate: 2 × (3 + 4)

Back

The answer is 14. (First, add 3 + 4 = 7, then multiply 2 × 7 = 14.)

Front

What is the difference between an expression and an equation?

Back

An expression does not have an equals sign and represents a value, while an equation states that two expressions are equal.

Front

Calculate: 5 + 2 × 3 - 1

Back

The answer is 10. (First, multiply 2 × 3 = 6, then add 5 + 6 = 11, and finally subtract 1 to get 10.)