Tag
#Mental Math
1 post
Mental math is the skill of doing arithmetic in your head — fast enough to be useful at the grocery store, restaurant, or anywhere a calculator would be a hassle. It’s not about being a savant; it’s about a small number of techniques (round and adjust, break the number into easier pieces, recognize patterns of 10s and 5s) that turn intimidating sums into a series of easy steps. The posts collected under this tag walk through the techniques with worked examples.
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Why Mental Math Matters and How to Improve It
Have you ever found yourself at a Walmart, trying to decide if that buy-one-get-one-free deal really saves you money? Or sitting at a diner with your…
by Professor Orion Hawthorne
