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

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

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

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

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

Players hone their two-digit addition skills as they match equations with their missing addends!

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

Addition experts, come on down! Practice quick-thinking two-digit addition in this educational game that tests off-the-cuff adding skills.

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

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.

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

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

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

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

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

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

Kids practice adding small numbers in this silly addition game.

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

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

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

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

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