To help Roly move through obstacles, kids learn a regrouping strategy to make addition within 20 easily!

Kids add to different target numbers, and must be quick; the balls are dropping fast!

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.

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

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

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

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.

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

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

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

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

Only your kid's addition skills can help Secret Agent Floyd defeat the evil El Gato.