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

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

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

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

Kids pick the right set of peapods to demonstrate their knowledge of ones and tens.

Your kid will listen, then locate the right clock in this time telling game.

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

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

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

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

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

In this underwater game, children choose the correct subtraction expression for a given fact family.

Learners practice subtraction and patterns of one less in this underwater math race!

Which subtraction fact is correct? Review subtraction fact families in this exciting math game.

What happens when you take 10 away? Practice finding 10 less in this three-digit subtraction game.

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

Hone first grade addition strategies with this underwater math adventure!

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

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

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

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

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

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

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

Kids subtract apples in two-step equations to find a target number.

Kids add buildings to the cityscape using tens and ones blocks.

Kids compare subtraction equations and numbers to feed the gators in this game.

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