This set of task cards will provide your students with a fun and challenging way to build fluency in addition. They are great practice and address CCSS for 3rd and 4th grade math.
Extra blank task cards are included. One possible challenge level is to ask students to design some magic squares.
The answer for the magic square is included in the key in case you want to include that as part of your requirements to make it more demanding for the students who need it.