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

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

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

Children practice adding two-digit and one-digit numbers to dig up fossils in this math game.

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.

Practice addition to 100 using multiples of 10! This game highlights two-digit addition math.

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

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

What’s the sum? Add 10 to that number in a three-digit addition game for second graders.

Practice two-digit addition and adding multiples of 10 in this Dino Fishing math game.

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

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

Take a deep dive into the addition strategy of adding one more with this underwater math adventure!

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

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

Help Roly get to the party on the other side of the river by solving addition word problems!

Give learners plenty of practice solving addition word problems with this math game!

Get ready to add 10 more! Analyze expressions like "110 + 10" and calculate three-digit sums.

Children use their knowledge of addition to snap pictures of unique dinosaurs in this fun math game!

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

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

Add 100 to three-digit numbers and find the matching sums in this exciting Dino Fishing game.

Dive for treasure and missing factors in this online game featuring addition equations.

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

Which number is missing? Click on the number that fits each addition expression and win the race.

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

Which equation looks right? Review fact families and addition to 10 in this educational math game.

Students help Birdee and Cuz-Cuz count up all the fish they won in this addition game.

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