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All thingsYou learned in mathematics classThe percentages were probably the most useful. And yet, most of us are still not very good for them ... which is probably the reason why this trick requiring to calculate the percentages more easily on the spot is now viral. It was shared by "math whiz" self-proclaimedBen StephensLast week, and everyone wonders why they never learned that before.

Even people who teach mathematics or have advanced diplomas in the subject have been amazed.

Of course, the trick does not make all the percentages easier to understand. For example, calculating 43% 87 of 87 is not much easier than calculating 87% of 43. (the response from the road is 37.41.) Once you have entered the decimals, it's a whole other bullet game for anyone 'tMatt Damon figure inHunting goodwill.

But, as Ben wrote on Twitter, it's interesting to say that "pretty much everyone gets that 3 x 5 = 5 x 3 [but] we never thought (nor learned) to think about calculating a percentage like a multiplication operation ". And it's a neat trick to get out the next time you split the dinner bill in four ways. And for more mathematics blowing, check these40 facts about the numbers that will make you feel like a mathematical genius.

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