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

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

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

Match each addition fact to its answer in this online game!

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

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

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

Help Roly get to the party on the other side of the river by solving addition word problems!

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

Give learners plenty of practice solving addition word problems with this math game!