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

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

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

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.

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

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

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

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

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!

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

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

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

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

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

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

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