If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains ***.kastatic.org** and ***.kasandbox.org** are unblocked.

Main content

Intro to place value: NumbersWays to write whole numbers (expanded form and written form): NumbersRegrouping whole numbers: NumbersComparing 3-digit numbers: NumbersComparing multi-digit numbers: NumbersPredecessor and Successor: NumbersLakhs, crores, millions, and billions : NumbersAdding multi-digit numbers: Numbers

Intro to adding negative numbers: Addition and subtraction of negative numbersIntro to subtracting negative numbers: Addition and subtraction of negative numbersAdding & subtracting with negatives on the number line: Addition and subtraction of negative numbers

Adding & subtracting integers: Addition and subtraction of negative numbersAddition & subtraction word problems with negatives: Addition and subtraction of negative numbersProperties of addition & subtraction: Addition and subtraction of negative numbersAdding & subtracting negative numbers: variables: Addition and subtraction of negative numbers

Fractions intro: FractionsFractions on the number line: FractionsFractions and whole numbers: FractionsEquivalent fractions 2 : FractionsEquivalent fractions 1: FractionsEquivalent fractions on the number line: FractionsCommon denominators: Fractions

Comparing fractions: FractionsMixed numbers: FractionsDecomposing fractions: FractionsAdding and subtracting fractions with like denominators: FractionsVisually adding and subtracting fractions with unlike denominators: FractionsAdding and subtracting mixed numbers: FractionsAdding and subtracting mixed number with unlike denominators: FractionsAdding and subtracting fractions with unlike denominators word problems: Fractions

Mastery unavailable

Mastery unavailable

Test your knowledge of the skills in this course. Have a test coming up? The Course challenge can help you understand what you need to review.