Variables and Expressions

Front

What is a variable in mathematics?

Back

A variable is a symbol, often a letter, that represents a number that can change or vary.

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What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operations (like addition or multiplication) that represents a value.

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Front

What is the sum of 542 and 348?

Back

The sum is 890.

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The quotient is 781.

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The product is 688.

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting the variables with numbers.

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What is the difference between a sum and a product?

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A sum is the result of adding numbers, while a product is the result of multiplying numbers.

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What is the term for the result of a division operation?

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The result of a division operation is called the quotient.