Your students will love playing Bump while practicing 2 digit addition without regrouping. Just roll the dice, create a 2 digit number, and add it to the magic number. This game should last a good amount of time since not all sums are listed on the board - teacher win!
If you have never played Bump before, it's super simple and you probably already have all the materials you need in the classroom! For this game you will need two dice and counters of various colors. I prefer to use number cubes instead of dice with pips but you use whichever you prefer.
My students LOVE playing Bump and we play it all year to practice different skills. You can check my store for other Bump games if you like this one!