Numerical Expressions

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What is a numerical expression?

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A numerical expression is a mathematical phrase that includes numbers and operations (such as addition, subtraction, multiplication, and division) but does not include an equal sign.

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What is the order of operations in mathematics?

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The order of operations is a set of rules that determines the sequence in which calculations are performed. 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 does the term 'exponent' mean?

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What is the difference between a numerical expression and an equation?

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A numerical expression contains numbers and operations but no equal sign, while an equation states that two expressions are equal and includes an equal sign.

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