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2nd grade

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Kids ages 2-8 (preschool—2nd grade) can read, play, and learn with fun animal friends in our free interactive mobile app, Khan Academy Kids. We have tools for teachers, too!

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Unit 1: Add and subtract within 20

Add within 20Add using arraysSubtract within 20

Add and subtract within 20

Unit 2: Place value

Intro to place valueNumbers in standard, word, and expanded formRegroup whole numbers

Comparing 2 and 3 digit numbersEven and odd numbersCounting patterns within 1,000

Unit 3: Add and subtract within 100

Visually adding within 100Strategies for adding within 100Visually subtract within 100

Addition and subtraction: missing valuesAddition and subtraction within 100 word problemsAddition and subtraction within 100 word problems (multi-step)

Unit 4: Add and subtract within 1,000

Visually adding within 1,000Strategies for adding within 1,000Strategies for subtracting within 1,000

Adding up to four 2-digit numbers

Unit 5: Money and time

Counting moneyTime

Unit 6: Measurement

Units of lengthMeasure lengthsEstimate lengths

Length word problems

Unit 7: Data

Picture graphsBar graphsLine plots

Unit 8: Geometry

ShapesEqual parts of shapesPartition rectangles

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