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

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

Muggo needs to be fixed! Kids must use shapes to fill in a shark puzzle in this game.

Here's a set of complex patterns for first graders who need practice with shapes and patterning.

Practice using inverse operations, which means using subtraction to help you solve an addition problem.

In this matching game, first graders look at subtraction facts that are missing factors.

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

Kids add buildings to the cityscape using tens and ones blocks.