When I give my students this activity, I am having them practice their multiplication as well as working with probability. Students fill in the multiplication chart below and then record numbers that are very likely, not so likely and impossible.
I am a third generation public school teacher who has been in education since 1987. I have taught elementary students full time for 20+ years. I am also a freelance curriculum writer. You can contact me at mrs.mjbauer(at)gmail(dot)com.