I developed these bump game boards to help my students practice their double facts to 18. There are three versions.
The first uses 4-9 facts, since those were the most difficult for my students. I used a blank dice and wrote the numbers for 4-9 on the dice. The next one uses a nine-sided dice to practice 1-9 facts. The last one uses a ten-sided dice to practice 0-9 facts.
Instructions are included.
(I've included white background game boards if you have to watch your color printing usage.