This activity was created for the standard: Adding & subtracting within 100 (using place value models). (2.NBT.5) I also have included a game board for students to use the regular algorithm to add and subtract.
There are different sets of cards that are designed to scaffold the standard. I created this activity to support students that are struggling in math and involve them in the “rigor” of the standards. I teach this activity in a small group and then place it in my math workshop centers. You can differentiate this activity by limiting the amount of sets of cards that a student will manipulate at one time. Hope you enjoy the activity!