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

Children use their mental math skills to determine which equations add up to 20 in this math game.

How do you make 10? Dive into a math adventure and discover simple equations that add up to 10.

Find the sum of 12 plus 8 and other combinations that make 20 in this online diving adventure.

In this energizing math game, think about how different numbers can add up to 20.

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

Children race down the river and across the finish line by choosing the equations that make 20.