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

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

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!

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

Hone first grade addition strategies with this underwater math 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.

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.

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

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