Expressions with Variables

Front

What is a variable in mathematics?

Back

A variable is a symbol, often a letter, that represents a number that can change or vary.

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CCSS.6.EE.A.2B

Front

What is an expression?

Back

An expression is a combination of numbers, variables, and operations (like addition or multiplication) that represents a value.

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CCSS.6.EE.A.2B

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting the variables with specific numbers.

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CCSS.6.EE.A.2C

Front

What is the difference between an equation and an expression?

Back

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

Front

Can an expression have more than one variable?

Back

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CCSS.6.EE.A.2B

Front

What is a coefficient?

Back

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CCSS.6.EE.A.2B

Front

What is a constant?

Back

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CCSS.6.EE.A.2B

Front

How do you solve for a variable in an equation?

Back

To solve for a variable, you isolate it on one side of the equation using inverse operations.

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CCSS.7.EE.B.4A

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Back

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CCSS.6.EE.B.7

Front

Back

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CCSS.6.EE.B.7