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

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

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

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

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

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

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

Kids add to different target numbers, and must be quick; the balls are dropping fast!

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

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

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

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

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

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