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.

To log in and use all the features of Khan Academy, please enable JavaScript in your browser.

Main content

1st grade

Looking for Missions? Click here to start or continue working on the 1st grade Mission.

Place value

Numbers 0 to 120Ones and tensComparing 2-digit numbers

Addition and subtraction

Relate addition and subtractionAddition within 20Subtraction within 20Equal sign

Missing number within 20Word problems within 20Word problems with "more" and "fewer"Adding 1s and 10sIntro to addition with 2-digit numbers

Measurement, data, and geometry

Length and sizeBar graphsTime

ShapesFractions of shapes

Staff picks

Relating addition and subtraction

Relate addition and subtraction

Addition and subtraction word problems 1

Word problems within 20

Measuring length: golden statue

Length and size

Intro to place value

Fractions of shapes

Get Started
Numbers 0 to 120

Learn the numbers from 0 to 120.

Community questions