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

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

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.

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

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

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

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

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

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

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.