Order of Operations

Front

What is the Order of Operations?

Back

A set of rules that determines the sequence in which operations are performed in a mathematical expression.

Front

What does PEMDAS stand for?

Back

Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

What operation should be performed first in the expression 5 + 2 × 3?

Back

Multiplication should be performed first, resulting in 5 + 6 = 11.

Front

In the expression 8 - (3 + 2), which operation is performed first?

Back

The operation inside the parentheses is performed first, resulting in 8 - 5 = 3.

Front

What is the result of 6 + 2 × (3 - 1)?

Back

First, solve the parentheses: 3 - 1 = 2. Then, 2 × 2 = 4. Finally, 6 + 4 = 10.

Front

Why is it important to follow the Order of Operations?

Back

To ensure that mathematical expressions are evaluated consistently and correctly.

Front

What is the result of 4 + 3 × 2 - 1?

Back

First, perform multiplication: 3 × 2 = 6. Then, 4 + 6 - 1 = 9.

Front

In the expression 10 - 2 + 5, which operation is performed first?

Back

Both subtraction and addition are performed from left to right, so 10 - 2 = 8, then 8 + 5 = 13.

Front

What is the result of 2 × (3 + 4) - 5?

Back

First, solve the parentheses: 3 + 4 = 7. Then, 2 × 7 = 14. Finally, 14 - 5 = 9.

Front

What is the error in the expression 5 - 3 + 2 = 0?

Back

The error is in the order of operations; addition was done before subtraction.