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.

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.

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.

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.

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

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

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

Practice addition to 100 using multiples of 10! This game highlights two-digit addition math.

Only your kid's addition skills can help Secret Agent Floyd defeat the evil El Gato.

Kids practice addition and subtraction with manipulatives in this silly shopping game.