Check out this FREEBIE::::
This is an answer key included. Instructions: Print and cut out task cards, copy the answer sheet for each student. Students answer each fact and write the answer of the correlating task card on their answer key. This could be a walk around the room activity, small group, or even whole group activity.
If you enjoy that product, or you need something more advanced, I also have two digit addition both with and without regrouping.
Winter Theme Two Digit Addition Task Cards WITH Regrouping