scott wrote:
> It makes things later in life, assuming you go on with studying maths, a
> lot
> easier.  At university I used to cringe at the people who used their
> calculators so often to do what they really should be doing in their head.
> When you are tackling a large problem it is a huge advantage do be able to
> do at least the basics very quickly in your head.

And it's very easy to lose practice. I used to be good at maths at school.
Now (like 2 years later), I sometimes take a few seconds to solve those
silly "6+7" anti-spam tests. Probably I wouldn't take too much time to get
my brain in practice again, but...

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