Algebraic Expressions

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What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols. It does not have an equality sign.

Tags

CCSS.6.EE.A.2B

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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 the variables with specific numbers.

Tags

CCSS.6.EE.A.2C

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How do you translate a verbal phrase into an algebraic expression?

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To translate a verbal phrase into an algebraic expression, identify keywords that correspond to mathematical operations (e.g., 'sum' for addition, 'difference' for subtraction) and use variables for unknown quantities.

Tags

CCSS.6.EE.A.2B

Front

What is the constant in an algebraic expression?

Back

A constant is a fixed value that does not change, represented by a number in an algebraic expression.

Tags

CCSS.6.EE.A.2B

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What is a variable in algebra?

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A variable is a symbol, usually a letter, that represents an unknown value in an algebraic expression or equation.

Tags

CCSS.6.EE.A.2B

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What does 'twice a number' mean in algebraic terms?

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'Twice a number' means to multiply the number by 2, often represented as 2n, where n is the variable.

Tags

CCSS.6.EE.A.2A

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How do you express 'half a number' in algebra?

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'Half a number' can be expressed as n/2, where n is the variable representing the number.

Tags

CCSS.6.EE.B.6

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What is the difference between an expression and an equation?

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An expression is a combination of numbers, variables, and operations without an equality sign, while an equation states that two expressions are equal, using an equality sign.

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How do you simplify an algebraic expression?

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To simplify an algebraic expression, combine like terms and perform any operations to reduce it to its simplest form.

Tags

CCSS.7.EE.A.1

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What does 'increased by' indicate in an algebraic expression?

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'Increased by' indicates addition. For example, 'a number increased by 5' is represented as n + 5.

Tags

CCSS.6.EE.A.2A