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

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

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

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

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