Kids must move fast to find addition pairs that total a target sum within 20.

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

Kids must help Cuz-Cuz and Birdee read bar graphs in this colorful data game.

Kids practice mentally adding sums up to 30 in this fast-paced addition race.

Add 100 to three-digit numbers and find the matching sums in this exciting Dino Fishing game.

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