or
Add.
351
327
ref_doc_title.

Confetti

Jumping to level 1 of 1

Excellent!

Now entering the Challenge Zone—are you ready?

Teacher tools
Work it out
Not feeling ready yet? These can help:
Skill IconS.5Use models to add three-digit numbers - with regrouping
Skill IconS.7Use expanded form to add three-digit numbers - with regrouping
Skill IconS.3Use compensation to add - up to three digits
Skill IconS.1Use number lines to add three-digit numbers
Skill IconT.5Addition with three-digit numbers - with regrouping