Is Your Mental Math Good Enough?

Mental arithmetic is very important brain exercise, but how fit are you?

How good are you at working out a restaurant tip by yourself? Can you calculate a precise tip? Do you estimate really well? Or are you one of the many people who come up with a generous figure out of thin air because you don’t know what else to do without pulling out a calculator?

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Keith McNulty

Keith McNulty

Expert and Author in Applied Mathematics, Data Science, Statistics. Also writes History, Science, Culture. Find me on LinkedIn or Twitter or keithmcnulty.org