Common Core on Khan Academy

Khan Academy is the deepest resource on the math Common Core State Standards, and it is free! We have over 150,000 interactive exercises with step-by-step solutions and videos that can supercharge your Common Core classroom. You can use the exercises individually as virtual Common Core worksheets or use them in our grade-aligned missions for personalized preparation for Common Core State Exams.

We have developed over 150,000 exercises and thousands of videos directly aligned to the common core. Here we explore the tools further.