Vietnamese teachers and parents who are at least as dumb as I am have been totally overwhelmed by this math problem for third graders.

I'd like to buy a vowel. (via)

8-year-old students in the town of Bao Loc, Vietnam, were given the above math problem, which has stumped teachers and parents alike. It even stumped me, and I know my times table all the way up to 6.

The solution requires only basic arithmetic and involves placing digits 1 through 9 in each blank space so that the puzzle solves for 66, which seems simple. But it's actually really hard and scary, and the more I think about it, the happier I am that I'm allowed to google math problems.

Sources: The Guardian