Addition experts, come on down! Practice quick-thinking two-digit addition in this educational game that tests off-the-cuff adding skills.

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

Kids sharpen mental addition skills with this silly construction math game.

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

Practice essential first grade addition skills in this river-themed math game!

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

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

Kids hone their single-digit addition skills as they match equations with their missing factors.

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

First graders hone their addition skills of adding one more with this water rafting math adventure!

Add one and find the sum! In this game, children practice number and pattern recognition skills.

Children will love racing to the finish line while boosting their addition and mental math skills.

Children use their mental math skills to determine which equations add up to 20 in this math game.

Compose numbers to make 20 and build first grade addition skills in each round of this online game.

Math learners hone their multi-digit addition skills in this interactive game show!

Children dig up dinosaur fossils by adding 10 to multiples of 100 in this prehistoric game.

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

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

In this math game, students practice finding sums and performing addition with 5.

Kids practice adding and taking away 10 in this silly game show.

Add it up! Kids must use mental addition to match each equation to its answer.

Kids practice addition and subtraction with manipulatives in this silly shopping game.

Build up second graders’ math knowledge with a diving game about three-digit addition.

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

Play this snow-themed game, in which students practice using patterns to add within 10.

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

Kids practice two-digit addition to 100 in this action-packed number line game.

Fill in these addition facts! This game challenges kids to match missing addends to each equation.

Match each addition fact to its answer in this online game!

Children use their addition knowledge to complete equations in a race to reach the sunken treasure.