I like Ed Puzzles. They are a great resource for may do must do time. Also a resource when you have a substitute. I sub a lot, and 5th grade teachers use Ed Puzzles a lot.
I like to use it for my substitutes as well. I have noticed lately, that you definitely need to watch the entire video sometimes, as they've started putting clickable links on them. It's hard I'm sure for EdPuzzle to keep up with it all