This is a missing addends write-the-room activity or math center. I like to print the task cards on cardstock and laminate for a longer lasting product. I have two different sets of task cards and answer keys. For your quick finishers, have them write the fact family for each fact. I hope this is what you were looking for! Please leave me some feedback and I am happy to answer any questions you have about this resource at firstname.lastname@example.org.