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

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 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!

Kids practice recognizing addition patterns as they match equations to their correct answers.

Kids practice concrete counting and simple addition at the pizza parlor.

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

Play this snow-themed game, in which students practice using patterns to add within 10.

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

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.

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

All aboard! Kids solve addition problems on a number line using 1, 10, and 100 unit manipulatives.

Hone first grade addition strategies with this underwater math adventure!

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.

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

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

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

As students practice adding one-digit numbers, they will move their character to the finish line in Ski Racer: Addition to 10.

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

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

Match each addition fact to its answer in this online game!

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

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

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

Kids add to different target numbers, and must be quick; the balls are dropping fast!