Haha! I had the same story about substracting "impossible" numbers (I distinctly remember that it was 6-9) when I was like 5 or 6. Fortunately I had a very good

Haha! I had the same story about substracting "impossible" numbers (I distinctly remember that it was 6-9) when I was like 5 or 6. Fortunately I had a very good teacher and she dismissed it politely, saying something like that was a little advanced and would be explained another year. We still talk and laugh about the anecdote whenever I met her on the street. Math IS fun, but it's damn hard to teach, and that's why math teachers end up being hated more often than the rest. Learning math is much more about finding your way to the "eureka" moments than letting someone do it for you, but it's very satisfying once you get the hang of it.