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

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

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

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.

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

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

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

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

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