Writing and evaluating numerical expressions without exponents

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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 variables or exponents.

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How do you evaluate a numerical expression?

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To evaluate a numerical expression, perform the operations in the correct order, following the order of operations (PEMDAS/BODMAS: Parentheses/Brackets, Exponents/Orders, Multiplication and Division (from left to right), Addition and Subtraction (from left to right)).

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What does it mean to write an expression for a word problem?

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Writing an expression for a word problem means translating the words into a mathematical expression that represents the situation described.

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What is the order of operations?

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The order of operations is the rule that tells you the sequence in which to perform operations in a mathematical expression: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

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What is the expression for 'eight more than a number'?

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How do you represent 'three times the sum of a number and five'?

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The value is 16.

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The value is 11.

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What is the expression for 'the difference of a number and four'?

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How do you write 'twice a number decreased by seven'?

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