6.A.2.1
Generate equivalent expressions and evaluate expressions involving positive rational numbers by applying the commutative, associative, and distributive properties and order of operations to model and solve mathematical problems.
Example Problems
Evaluate:
Evaluate:
Evaluate:
Khan Academy ResourcesEvaluating expressions with one variableOrder of operations reviewEvaluating expressions with two variablesEvaluating expressions with multiple variablesCreate equivalent expressions by factoringOrder of operations (no exponents)Order of operations with fractions and exponentsCombining like termsVariable expressions with exponentsEquivalent expressionsDistributive property with variablesOrder of operationsEvaluating an expression with one variableEvaluating expressions with variables: temperatureEvaluating expressions with variables: exponentsWorked example: Order of operations (PEMDAS)Distributive property over additionDistributive property over subtractionOrder of operations introductionOrder of operations example: fractions and exponentsEquivalent expressionsEvaluating exponent expressions with variablesEvaluating expressions like 5x² & ⅓(6)ˣEvaluating expressions with two variables: fractions & decimalsEvaluating expressions with two variablesDistributive property with variablesComparing exponent expressionsOrder of operations examples: exponents

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