Help second graders learn about addition facts to 20 in this online matching activity.

Only your kid's addition skills can help Secret Agent Floyd defeat the evil El Gato.

Reinforce your child's three-digit addition skills with this ski-themed learning adventure!

Children must choose the correct addition expressions as they race to the sunken treasure chest.

Children practice addition within 10 in this water rafting adventure!

Kids solve two- and three-digit addition problems by regrouping in order to help the Professor grow out his beard.

All aboard! Kids solve addition problems on a number line using 1, 10, and 100 unit manipulatives.

Kids solve a multi-step word problem by counting out the right number of coins.

Children will solve addition word problems in order to help Roly make it across the river!

Kids add to different target numbers, and must be quick; the balls are dropping fast!