At first glance there isn't much to this ... but then I wondered how I could use it in class. I post puzzles on a bulletin board, and try to post a cartoon, comic or puzzle on some printed assignments. I decided I could use this #mathfail in that way. So ... I decided to pose this question:
Is there a base other than base 10 in which this would be a true fact?
Create 3 additional facts with incorrect answers in our base 10, and find a base in which the answer would be correct.
Would you use this type of question for enrichment or in your puzzle corner??