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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.

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

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

Kids mix up a potion to help Professor Beardo grow out his beard, and practice place value, in this multi-digit addition game.

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!

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

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

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

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

Kids must move fast to find addition pairs that total a target sum within 20.

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

Kids practice adding small numbers in this silly addition game.

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

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

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

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

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

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

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

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

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

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

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