I created this document to help my kids with adding/subtracting to 10 and 100. I have the 0-100 cards from Differentiated Kindergartens Constructing Numbers Act. (http://www.teacherspayteachers.com/Product/Constructing-Numbers-A-Differentiated-Place-Value-Activity-214060) so those are the cards I am using and needed to bring the activity up to 2nd grade level this year. You can use any number cards you have on hand. :)
Please leave feedback!
Hope you enjoy; know this is for a single classroom use only.