An easy-looking equation has proved difficult to solve for many online. Can you remember a golden rule from math lessons to help you get the right answer?
It looks simple at first, but this math problem has the internet stumped. Don't be fooled - it demands more brainpower than ...
Two students in Danielle Adler’s kindergarten class at Marcus Hook Elementary School in Marcus Hook, Pa., prepare for an addition problem. Credit: Holly Korbey for The Hechinger Report The Hechinger ...
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