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.

Kids tackle subtraction to 20 in this silly math game.

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

Match up subtraction facts to 20 in this engaging math game for second graders!

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.

The alligators are hungry for numbers, and kids use number skills to feed them.

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

In this underwater game, children choose the correct subtraction expression for a given fact family.

Learners practice subtraction and patterns of one less in this underwater math race!

Players race down the roaring rapids while practicing subtraction patterns of one less.

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!

Kids practice place value for numbers 11 to 20 in this ten-frame game.

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

Kids peck through boards in numerical order in this exciting counting game.

This upbeat game is a fun way to help learners practice solving subtraction word problems.

Kids use their math knowledge to race to the finish line by correctly solving subtraction problems.

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.