This includes 24 two-digit addition cards to place around your classroom. (with/without regrouping)
Students will take their recording sheet, complete the task on each card, then go back and check their answers by scanning the QR code with a QR reader.
If you don't have access to a QR reader, this activity can still be done around the room, students just can't check their answers!
I've included the recording sheet and answer sheet for the teacher.