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

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

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

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

To help Roly move through obstacles, kids learn a regrouping strategy to make addition within 20 easily!

Let's have a ski race while practicing addition to 20 in this fast-paced learning adventure!

In this energizing math game, think about how different numbers can add up to 20.

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

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

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

Kids try to match the equations that equal the same number in this online math game!

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!

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 will solve addition word problems in order to help Roly make it across the river!

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

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

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

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

Children must choose the correct addition expressions as they race to the sunken treasure chest.

Children complete a race by choosing the correct addition expressions for the given fact families.

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

Children will love racing to the finish line while boosting their addition and mental math skills.

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

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

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

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.

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