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

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

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.

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

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

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

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

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

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

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

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

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

In this matching game, first graders look at subtraction facts that are missing factors.

Kids practice adding and taking away 10 in this silly game show.

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

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

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

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.

Help children hone their number sense skills with this math game featuring skip counting by 10!

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

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

Children practice addition within 10 in this water rafting adventure!

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

Kids find numbers with tens and ones in this place value game show!

In this water rafting adventure, children will be asked to choose the equation that adds up to 10.

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

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

First graders match the cards that equal the same value in this mental math matching game.