Kids practice two-digit addition to 100 in this action-packed number line game.

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

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

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

First graders hone their addition skills of adding one more with this water rafting math adventure!

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

Hone first grade addition strategies with this underwater math adventure!

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

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

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