or
Add.
88
670
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 IconN.13Add two-digit numbers - sums to 200
Skill IconT.3Add a multiple of 10 or 100 to a three-digit number
Skill IconL.11Convert to/from a number - up to hundreds