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

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!

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

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

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

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

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