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!

Hone first grade addition strategies with this underwater math adventure!

Practice essential first grade addition skills in this river-themed 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!

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

Build up second graders’ math knowledge with a diving game about three-digit addition.

What’s the sum? Add 10 to that number in a three-digit addition game for second graders.

Help second graders learn about addition facts to 20 in this online matching activity.

First graders gain confidence with addition and decomposing numbers in this fun water rafting game!

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

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

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

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

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

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!

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

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

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

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

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

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

Reinforce your child's three-digit addition skills with this ski-themed learning adventure!

Help Roly get to the party on the other side of the river by solving addition word problems!

Give learners plenty of practice solving addition word problems with this math game!

Practice two-digit addition and adding multiples of 10 in this Dino Fishing math game.

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.