A confused dad has been left stumped by his 10-year-old son’s math homework, so he’s turned to the internet for help. The American father took to Reddit after being left puzzled by a multiple-choice ...

A seemingly innocent math question from a 10-year-old’s homework has ignited a storm of confusion and debate online, leaving a U.S.-based father—and thousands of Reddit users—scratching their heads.

The mom explained in a now-viral video that she was unable to help her daughter, Mackenzie, with some of her math homework, which used Common Core methods Now, Sarno tells PEOPLE that she still ...