# Pre-algebra

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Fractions intro: Fractions Fractions on the number line: Fractions Equivalent fractions: Fractions Comparing fractions: Fractions Common denominators: Fractions Decomposing fractions: Fractions Adding and subtracting fractions with like denominators: Fractions Mixed numbers: Fractions Adding and subtracting fractions with unlike denominators: Fractions Adding and subtracting mixed number with unlike denominators: Fractions

Adding and subtracting fractions word problems: Fractions Multiplying whole numbers and fractions: Fractions Multiplication as scaling: Fractions Multiplying fractions: Fractions Multiplying mixed numbers: Fractions Multiplying fractions word problems: Fractions Fractions as division: Fractions Dividing unit fractions and whole numbers: Fractions Dividing fractions by fractions: Fractions Dividing fractions word problems: Fractions

Intro to negative numbers: Negative numbers and coordinate plane Order negative numbers: Negative numbers and coordinate plane Number opposites: Negative numbers and coordinate plane Absolute value: Negative numbers and coordinate plane

Intro to adding negative numbers: Negative numbers and coordinate plane Intro to subtracting negative numbers: Negative numbers and coordinate plane Adding & subtracting negative numbers: Negative numbers and coordinate plane Multiplying & dividing negative numbers: Negative numbers and coordinate plane Coordinate plane: Negative numbers and coordinate plane

Intro to ratios: Ratios, rates, proportionsVisualize ratios: Ratios, rates, proportionsRatio application: Ratios, rates, proportionsIntro to rates: Ratios, rates, proportionsIntro to percents: Ratios, rates, proportions

Percent, fraction, decimal conversions: Ratios, rates, proportionsPercent problems: Ratios, rates, proportionsPercent word problems: Ratios, rates, proportionsConstant of proportionality : Ratios, rates, proportionsIdentifying proportional relationships: Ratios, rates, proportionsWriting & solving proportions: Ratios, rates, proportions

Intro to variables: Equations, expressions, and inequalities Substitution & evaluating expressions: Equations, expressions, and inequalities Expression value intuition: Equations, expressions, and inequalities Constructing numeric expressions: Equations, expressions, and inequalities Evaluating expressions word problems: Equations, expressions, and inequalities Writing algebraic expressions introduction: Equations, expressions, and inequalities Writing basic algebraic expressions word problems: Equations, expressions, and inequalities

Algebraic equations basics: Equations, expressions, and inequalities One-step equations intuition: Equations, expressions, and inequalities One-step addition & subtraction equations: Equations, expressions, and inequalities One-step multiplication and division equations: Equations, expressions, and inequalities One-step equation word problems: Equations, expressions, and inequalities Inequalities: Greater than and less than basics: Equations, expressions, and inequalities Two-step equations intro: Equations, expressions, and inequalities Dependent and independent variables: Equations, expressions, and inequalities

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## Get StartedPlace value

In this tutorial we'll learn about place value. This is key to better understanding what we're really doing when we count, carry, regroup, multiply, and divide with multi-digit numbers.

Start learning: Place value