On 19 Sep 2017, at 13:01, bartc wrote:
My bill in a store came to £3.20 (GBP3.20), so I handed over £10.20.
I was given back £16.90 in change!
It turned out the cashier had entered £20.10 as the amount tendered.
It was sorted out in the end.
Sometimes its easier not to be bother making the figures come out
better.
My father & mother worked in a grocery shop ... pre-electronic version,
and to make things faster during the checkout they summarised some of
things in their head so they only had to enter it once, for example 7
liter of milk + 1 cream. I must say they were VERY VERY good in
calculating +/-/* in their heads.
As a kid I learned to do it to some degree but nowhere close to them.
And I'm amazed how often I see people trying to calculate
change = sum handed over - cost
and then trying to figure out what bills/coins should be returned
instead of doing the simple thing of just adding to the cost.
= jem
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