Kids solve two- and three-digit addition problems by regrouping in order to help the Professor grow out his beard.

Reinforce your child's three-digit addition skills with this ski-themed learning adventure!

Get ready to add 10 more! Analyze expressions like "110 + 10" and calculate three-digit sums.

Build up second graders’ math knowledge with a diving game about three-digit addition.

What’s the sum? Add 10 to that number in a three-digit addition game for second graders.

Add 100 to three-digit numbers and find the matching sums in this exciting Dino Fishing game.

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

Are you ready to add 10 to numbers over 100? Reinforce students’ learning in this ski-themed game.

Children dig up dinosaur fossils by adding 10 to multiples of 100 in this prehistoric game.

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

Kids help Elliott prepare treasures for her museum by answering word problems by using a tape diagram.

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.