Adults Stumped By Viral Math Question For 7-Year-Olds

Adults Stumped By Viral Math Question For 7-Year-Olds

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Adults all over the world are finding themselves stumped by a math question which was originally included as a bonus problem on a children's exam in Singapore. The question shows a circular puzzle with five numbers in it. There are four corresponding blanks that are meant to be filled in. And that's it.

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The question first surfaced on an online forum where the poster claimed it was taken from a Primary One (first-grade) exam. Singapore's Ministry of Education (MOE) initially couldn't confirm this, saying:

From the image, we are unable to ascertain if the question was from a school’s Primary 1 examination paper.

The MOE later told Mashable there were in fact "no examinations at Primary 1."



The question bears a striking resemblance to one that has previously appeared on a math blog by Gordon Burgin. The two questions are almost identical, with only one difference: the bottom-left number in Mr. Burgin's puzzle is 20 instead of 2. Some are pointing to this as a reason for the problem's unsolvability.



If you're getting a strange sense of deja vu, it's probably because people in Singapore were similarly unable to solve a math question nicknamed "Cheryl's birthday" way back in 2015. The question was first reported to be a fifth-grade level question, but was later revealed to be a ninth-grade Maths Olympiad question.


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