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

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 equation makes 10? Help young mathematicians figure it out in this treasure diving math game.

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

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

Find the sum of 12 plus 8 and other combinations that make 20 in this online diving adventure.

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

How do you make 10? Dive into a math adventure and discover simple equations that add up to 10.

Ask your child to practice adding up to 10 and breaking down math equations in this math race.

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

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

Help young learners identify the correct fact family equations in this exciting addition game.

Hone first grade addition strategies with this underwater math adventure!

In this energizing math game, think about how different numbers can add up to 20.

Think about how numbers are related in this interactive game about addition fact families.

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

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

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

Kids must move fast to find addition pairs that total a target sum within 20.

Children flex their mental math muscles as they try to quickly find the equations that add up to 10.

Kids help Elliott prepare treasures for her museum by answering word problems by using a tape diagram.

Kids try to match the equations that equal the same number in this online math game!

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

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

Children race down the river and across the finish line by choosing the equations that make 20.

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

Kids mix up a potion to help Professor Beardo grow out his beard, and practice place value, in this multi-digit addition game.

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