Practice adding and subtracting 1 from numbers with in 20 with this free set of I have, Who has cards. There is 1 set for adding 1 and 1 set for subtracting 1. Each set has 20 cards.
More Math Games:
Addition Mystery Picture Bundle
100th Day of School Fun Activities
CCSS
Math.Content.K.OA.A.5
CCSS
Math.Content.1.OA.C.6