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.

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

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

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