Main content
2nd grade
Course: 2nd grade > Unit 2
Lesson 3: Regroup whole numbersHundreds, tens, and ones
CCSS.Math: 2.NBT.A.1, 2.NBT.A.1a, 2.NBT.A.1b, 2.NBT.A
Problem
Stuck?
Stuck?
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.