This includes 3 different sets of cards of addition to 20
-A number plus 1
-Doubles and Doubles plus 1
You can use these games as reviews, in small groups and as classwide challenges. As a challenge, record the class' time everytime you play the game and constantly record and change it until they have the fastest time!
This goes along with common core standard 1.OA and can be used in other grades as a review.
Graphics from http://www.teacherspayteachers.com/Store/Sing-Smile-And-Learn