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

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

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

Add one and find the sum! In this game, children practice number and pattern recognition skills.

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

Get ready to add 10 more! Analyze expressions like "110 + 10" and calculate three-digit sums.

Are you ready to add 10 to numbers over 100? Reinforce students’ learning in this ski-themed game.