Mathematics Flashcard

Front

What is the purpose of parentheses in mathematical operations?

Back

Parentheses keep operations and numbers grouped together.

Front

Can a mathematical equation have more than one set of operations?

Back

Yes, a mathematical equation can have more than one set of operations.

Front

What is a variable in mathematics?

Back

A variable is a letter that stands for an unknown number in an expression or equation.

Front

What operations are performed after all multiplication and division operations are finished?

Back

Addition and subtraction are performed after all multiplication and division operations are finished.

Front

What is the order of operations in mathematics?

Back

The order of operations is a set of rules that dictates the sequence in which operations should be performed in a mathematical expression.

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

What is the first step in solving an equation with multiple operations?

Back

The first step is to perform operations inside parentheses.

Front

What is the role of exponents in mathematical expressions?

Back

Exponents indicate how many times a number (the base) is multiplied by itself.

Front

How do you simplify an expression with both multiplication and addition?

Back

You must perform multiplication before addition according to the order of operations.

Front

What is the difference between an expression and an equation?

Back

An expression is a combination of numbers and variables without an equality sign, while an equation states that two expressions are equal.