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

Hone first grade addition strategies with this underwater math adventure!

Practice essential first grade addition skills in this river-themed math game!

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

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

First graders gain confidence with addition and decomposing numbers in this fun water rafting game!

First graders hone their addition skills of adding one more with this water rafting math adventure!

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

Kids click on bubbles that add up to 10 to try to keep the bubbles from overflowing.

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

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

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

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

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

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

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

Children practice addition within 10 in this water rafting adventure!

Children complete a race by choosing the correct addition expressions for the given fact families.

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

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

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