The Fastest Way to Calculate a Tip in Your Head

Without pen and paper or a calculator.

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Math The Fastest Way to Calculate a Tip in Your Head Calculating 15-20% of a number often feels like it requires a calculator, but here's the quick and easy way to figure the number out in your head. READ NOW READ THESE The Difference Between "Reocurring" and "Recurring" Which Came First, Pepsi or Coke? 5 Common Misconceptions About Evolution You are receiving this newsletter because you subscribed to the Today I Learned newsletter. If you wish to unsubscribe, please click here A Dotdash Brand 1500 Broadway, 6th Floor, New York, NY, 10036 © 2019 Dotdash - All rights reserved. Privacy Policy.