Practice multi-digit addition with this hundred chart worksheet for second graders! 

Sharpen second graders' hundred chart know-how with this addition worksheet!

Make two-digit addition easier with this inviting worksheet!

Practice three-digit addition with regrouping in this set of 36 problems.

Get more practice adding multiples of 10 on an open number line with this colorful worksheet!

Use this visual model to practice adding 10 to two-digit numbers!