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

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

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

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

Add it up! Kids must use mental addition to match each equation to its answer.

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

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

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

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

In this math game, students practice finding sums and performing addition with 5.

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