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

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

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

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

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

Kids practice adding small numbers in this silly addition game.

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.

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

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

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

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

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

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

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