alt Hacker NewsSkipping to learn long division by hand because you'll always have a calculator (or better a smartphone at hand) is like going to a gym with a forklift. It is faster to lift the weights, but it kinda defeats the purpose.
Learning to do long division by hand trains the mind. It prepares you to understand polynomial division. It teaches you the deep connection of division and subtraction. So, mastering it should be part of the curriculum. As soon as it is truly mastered, it should be allowed to use a calculator.
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(Shrug) Every time a higher level of abstraction becomes available, a lower one loses importance. That's how it's worked for humanity since the dawn of recorded history. As others have pointed out, the ancient Greek scholars had the same baseless fears.
I don't think I've ever had to do polynomial division by hand. It comes up in control theory and a few other subfields, obviously including mathematics itself, but for me it's always been handled by software. It's safe to say that any given clanker will have better odds of doing it right than I will.
I think there is also an argument for general numeracy as a life skill. Lots of people I run into just have no intuitive sense of how numbers work and how to calculate roughly.
The number of people that cannot calculate a tip in their head, or have a basic grasp of how interest works is constantly shocking to me. Yeah, we all carry calculators around, but you should be able to reason about numbers enough to know when an entry error has been made on a calculator