Main content

# Equations, expressions, and inequalities

Learn

What is a variable?Why aren't we using the multiplication sign?

Learn

Evaluating an expression with one variableEvaluating expressions with two variablesEvaluating expressions with two variables: fractions & decimalsEvaluating expressions with one variableEvaluating expressions with two variablesEvaluating expressions with two variables: fractions & decimals

Practice

Evaluating expressions with one variableGet 5 of 7 questions to level up!

Evaluating expressions with multiple variablesGet 3 of 4 questions to level up!

Evaluating expressions with multiple variables: fractions & decimalsGet 3 of 4 questions to level up!

Learn

Expression value intuitionExpression value intuition

Practice

Expression value intuitionGet 3 of 4 questions to level up!

Learn

Constructing numerical expressionsEvaluating expressions with & without parentheses

Practice

Evaluate expressions with parenthesesGet 5 of 7 questions to level up!

Translate expressions with parenthesesGet 3 of 4 questions to level up!

Create expressions with parenthesesGet 3 of 4 questions to level up!

Learn

Evaluating expressions with variables: temperatureEvaluating expressions with variables word problemsEvaluating expressions with variables: cubesEvaluating expressions with variables: exponents

Practice

Evaluating expressions with variables word problemsGet 3 of 4 questions to level up!

Learn

Writing basic expressions with variablesWriting basic expressions with variablesWriting expressions with variablesWriting expressions with variablesWriting expressions with variables & parentheses

Practice

Writing basic expressions with variablesGet 5 of 7 questions to level up!

Writing expressions with variablesGet 5 of 7 questions to level up!

Learn

Writing basic expressions word problemsWriting basic expressions word problemsWriting expressions word problems

Practice

Writing basic expressions word problemsGet 5 of 7 questions to level up!

Writing expressions word problemsGet 5 of 7 questions to level up!

Learn

Variables, expressions, & equationsTesting solutions to equationsIntro to equations

Practice

Identify equations, expressions, and inequalitiesGet 3 of 4 questions to level up!

Testing solutions to equationsGet 5 of 7 questions to level up!

Learn

Same thing to both sides of equationsRepresenting a relationship with an equationDividing both sides of an equationOne-step equations intuition

Practice

Identify equations from visual models (tape diagrams)Get 3 of 4 questions to level up!

Identify equations from visual models (hanger diagrams)Get 3 of 4 questions to level up!

Solve equations from visual modelsGet 3 of 4 questions to level up!

Learn

One-step addition & subtraction equationsOne-step subtraction equationsOne-step addition & subtraction equationsOne-step addition & subtraction equations: fractions & decimals

Practice

One-step addition & subtraction equationsGet 5 of 7 questions to level up!

One-step addition & subtraction equations: fractions & decimalsGet 5 of 7 questions to level up!

Learn

One-step division equationsOne-step multiplication equationsOne-step multiplication & division equationsOne-step multiplication & division equations: fractions & decimals

Practice

One-step multiplication & division equationsGet 5 of 7 questions to level up!

One-step multiplication & division equations: fractions & decimalsGet 5 of 7 questions to level up!

Learn

Modeling with one-step equationsEquation word problem: super yoga (1 of 2)Equation word problem: super yoga (2 of 2)One-step equations review

Practice

Translate one-step equations and solveGet 3 of 4 questions to level up!

Model with one-step equationsGet 3 of 4 questions to level up!

Model with one-step equations and solveGet 3 of 4 questions to level up!

Learn

Greater than and less than symbolsPlotting inequalitiesInequality word problemsInequality word problem: one variablePlotting an inequality exampleGraphing inequalities review

Practice

Compare 2-digit numbersGet 5 of 7 questions to level up!

Plotting inequalitiesGet 3 of 4 questions to level up!

Inequality from graphGet 3 of 4 questions to level up!

Writing numerical inequalitiesGet 5 of 7 questions to level up!

Inequalities word problemsGet 3 of 4 questions to level up!

Learn

2-step estimation word problemsSetting up 2-step word problemsSame thing to both sides of equationsIntro to two-step equationsTwo-step equations intuitionWorked example: two-step equationsTwo-step equations review

Practice

Two-step equationsGet 5 of 7 questions to level up!

Learn

Dependent & independent variablesDependent & independent variables: graphingDependent & independent variables: equationDependent and independent variables review

Practice

Independent versus dependent variablesGet 3 of 4 questions to level up!

Tables from equations with 2 variablesGet 3 of 4 questions to level up!

Match equations to coordinates on a graphGet 3 of 4 questions to level up!

Relationships between quantities in equations and graphsGet 3 of 4 questions to level up!