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Algebraic expressions

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What is a variable?Why aren't we using the multiplication sign?Evaluating an expression with one variableEvaluating expressions with one variable
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Evaluating expressions with one variableGet 5 of 7 questions to level up!
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Evaluating expressions with two variablesEvaluating expressions with two variables
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Writing basic expressions with variablesWriting basic expressions with variablesWriting expressions with variablesWriting expressions with variables & parentheses
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Writing basic expressions with variablesGet 5 of 7 questions to level up!
Writing expressions with variablesGet 5 of 7 questions to level up!
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Intro to combining like termsSimplifying expressionsCombining like terms challenge problemSimplifying expressions with rational numbers
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Distributive property with variables
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Distributive property with variablesGet 3 of 4 questions to level up!
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Equivalent expressions
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Equivalent expressionsGet 5 of 7 questions to level up!
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Nested fractions
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Nested fractionsGet 3 of 4 questions to level up!

About this unit

The core idea in algebra is using letters to represent relationships between numbers without specifying what those numbers are!