Kids click on bubbles that add up to 10 to try to keep the bubbles from overflowing.

Kids practice concrete counting and simple addition at the pizza parlor.

Let's have a ski race while practicing addition to 20 in this fast-paced learning adventure!

Kids practice mentally adding sums up to 30 in this fast-paced addition race.

Players hone their two-digit addition skills as they match equations with their missing addends!

Learners hone their two-digit by one-digit addition skills in this underwater race to sunken treasure!

Children hone their multi-digit addition skills in this fun race to the finish line!

Hone first grade addition strategies with this underwater math adventure!

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

Kids practice recognizing addition patterns as they match equations to their correct answers.

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!

Your kid will add the right number of eggs to the nest to practice addition facts.

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!

Your kid represents addition facts with objects by counting Roly's hats.