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!

Kids practice matching each addition equation to its missing factor in this interactive math game.

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

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

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.

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

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

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

Children hone their knowledge of addition and missing addends in a race to reach the sunken treasure.

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

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

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

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

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

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

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

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

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

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

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

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

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!

In this water-themed race, first graders use math and logic to fill in each addition equation.

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

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

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

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