Module 4 Flashcard - Expressions Deeter

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

Front

How do parentheses affect the value of an expression?

Back

Parentheses indicate which operations should be performed first in an expression, potentially changing the overall value of the expression.

Front

What is the value of the expression 10 - 4 × 7 + 5 when rewritten with parentheses?

Back

The value is 47 when rewritten as (10 - 4) × 7 + 5.

Front

What is the result of the expression 100 - 14 ÷ 2 × (3 + 7)?

Back

The result is 30.

Front

How do you evaluate the expression 7 + 6 × 3?

Back

You first perform the multiplication: 6 × 3 = 18, then add: 7 + 18 = 25.

Front

What is the first step in evaluating the expression 3 + 4 × 6 - 4?

Back

The first step is to perform the multiplication: 4 × 6.

Front

What is the value of the expression 5 × 4 + 2 × 6?

Back

The value is 32.

Front

What is the difference between multiplication and addition in terms of order of operations?

Back

Multiplication is performed before addition according to the order of operations.

Front

Why is it important to follow the order of operations when solving expressions?

Back

Following the order of operations ensures that expressions are evaluated consistently and correctly.

Front

What does the acronym PEMDAS stand for?

Back

PEMDAS stands for Parentheses, Exponents, Multiplication and Division, Addition and Subtraction.