Learners use knowledge of three-digit place value to find the correct number based on the clues.

Kids make three-digit numbers with hundreds, tens, and ones in this 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.

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