Players race to reach sunken treasure, honing their multiplication skills along the way.

What happens when you take 10 away? Practice finding 10 less in this three-digit subtraction game.

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

Children practice rounding numbers to the nearest 10 in this underwater number sense game!

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