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

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

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!

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

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

Add it up! Kids must use mental addition to match each equation to its answer.