Addition Within 20 Hands-on Activities

Prepare for some scary Halloween counting practice! This game encourages players to knock down cylinders and then add to determine their scores.

For most second graders, a good secret code is just about irresistible. Here's one that builds math facts while you're at it!

Addition has never been much fun as it is with this super-risky, ultra-competitive card game. The player who ends up with the lowest score is the winner!

Help your child get comfortable with the concept of estimation, which will come in handy during everything from standardized tests to future shopping trips!

Looking for a cool game to help your first grader learn her 11s? Look no further than this clever one-person card game.

Practice addition with your child in a whole new way when you battle to defend your cards in this competitive game. Math has never been so fun!

Shake those dice and try to roll big numbers in this first grade math game. Practice addition in a new, fun way!

Create equations in this strategic math card game. Your second or third grader can practice addition, subtraction, multiplication, and division in a new way!

Engage your third-grader in this version of the classic game and she will get lots of practice using mental math to solve addition and subtraction problems.

Take paper football to the next level by creating a "field" with objects from around the house. A great indoor and rainy-day activity.