This is a fun little math activity I tried today, recommended by a colleague.
Flip the questions upside down and see if they can figure out the pattern. It helps to tell them how many numbers are in the data set. For example, the question above has 5 single digit numbers. Can you figure them out?
We worked through a couple as a group, made a list of helpful strategies, and then we made our own and tried to trick our friends. Great to see them so engaged and thinking about math for a full two hours.