A 7-year-old boy's math problem had his father stumped. Reddit/u/kumquat_may He said he posted the question to Reddit as he felt it was "worthy of discussion" and potentially wrong.

Roxanne Campeau from Montreal in Canada was left red-faced after her 9-year-old son Jax got his marks back from a recent math assignment. Homework can be a struggle for kids after a busy day.