Math Expressions Flashcard

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What is an expression in mathematics?

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An expression is a combination of numbers, variables, and operators (such as +, -, *, /) that represents a value.

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What does it mean to evaluate an expression?

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To evaluate an expression means to calculate its value by substituting numbers for the variables and performing the operations.

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What is the order of operations?

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The order of operations is a set of rules that determines the sequence in which calculations are performed in an expression. The acronym PEMDAS helps remember the order: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

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What is a prime number?

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A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.

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What is prime factorization?

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Prime factorization is the process of expressing a number as the product of its prime factors.

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The value is 13.

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What is the prime factorization of 45?

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What is the prime factorization of 72?

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The value is 50.

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