Unit 1 Algebra Flashcard- Foundations of Algebra

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69

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7

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-11

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If Britany has triple as many bags of Takis as Thomas and Matt has 4 bags less than Thomas, which algebraic expression models the total bags of Takis?

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If Justin has double as many shoes as Keisha, Christian has 15 more pairs than Keisha, and Chloe has 3 pairs less than Keisha, what is the expression for their total shoes?

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What is the definition of a variable in algebra?

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A symbol used to represent an unknown value.

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Define an algebraic expression.

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A mathematical phrase that can contain numbers, variables, and operators.

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What is the difference between an equation and an expression?

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An equation states that two expressions are equal, while an expression does not include an equality sign.

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What does it mean to evaluate an expression?

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To calculate the value of the expression by substituting variables with numbers.

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What is the order of operations in mathematics?

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Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).