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

Unit: Numbers and operations

0

Possible mastery points
Level up on the above skills and collect up to 600 Mastery points
Level up on the above skills and collect up to 400 Mastery points
Level up on the above skills and collect up to 300 Mastery points
Level up on the above skills and collect up to 600 Mastery points
Up next for you:

Unit test

Level up on all the skills in this unit and collect up to 1900 Mastery points!

About this unit

Math is all about numbers (like 89 and 3.14) and operations (like addition and multiplication). In these tutorials, we learn about a some new types of numbers and some new types of operations.