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

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

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

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

Let's have a ski race while practicing addition to 20 in this fast-paced learning adventure!

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

Kids practice mentally adding sums up to 30 in this fast-paced addition race.

Kids try to match the equations that equal the same number in this online math game!

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

Math learners hone their multi-digit addition skills in this interactive game show!

To help Roly move through obstacles, kids learn a regrouping strategy to make addition within 20 easily!