First graders hone their addition skills of adding one more with this water rafting math adventure!

Take a deep dive into the addition strategy of adding one more with this underwater math adventure!

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

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

Add one and find the sum! In this game, children practice number and pattern recognition skills.

Learners hone their two-digit by one-digit addition skills in this underwater race to sunken treasure!

Children use their mental math skills to determine which equations add up to 20 in this math game.

Which equation makes 10? Help young mathematicians figure it out in this treasure diving math game.

How do you make 10? Dive into a math adventure and discover simple equations that add up to 10.

Children race down the river and across the finish line by choosing the equations that make 20.

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

Children practice adding two-digit and one-digit numbers to dig up fossils in this math game.

Children hone their multi-digit addition skills in this fun race to the finish line!

Find the sum of 12 plus 8 and other combinations that make 20 in this online diving adventure.

In this water rafting adventure, children will be asked to choose the equation that adds up to 10.

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.

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

Kids sharpen mental addition skills with this silly construction math game.

Children use their knowledge of addition to snap pictures of unique dinosaurs in this fun math game!

Compose numbers to make 20 and build first grade addition skills in each round of this online game.