The question from the 2012 Programme for International Student Assessment (PISA), a test conducted every three years across more than 80 countries in the Organisation for Economic Co-operation and ...
Let's keep things simple – this is basic math. Nothing scary. Just everyday calculations, a bit of geometry, some number patterns, and the kind of stuff you definitely learned in school at some point.
Add Yahoo as a preferred source to see more of our stories on Google. Sorry, it's math time. But these are some of the easiest math quizzes we've ever put on BuzzFeed ...