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delirium happy

Just keep on trying till you run out of cake

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Arithmetic
SHM
rho
I have a question for those of you who have worked retail and/or are no good at maths.

See, I'm good with numbers. Always have been. One of the consequences of this is that I'm really not sure what an average level of numeracy is.

When I went to the supermarket yesterday, after going through the checkout, I owed £32.74. Now, I had in my purse at this point some twenty pound notes and an absolute ass-load of coins. I could have just given the guy at the checkout two twenties, but I didn't want to do that because that would have meant getting even more change.


My first thought was just to hand over £43, and get given £10.26 in change. However, I know that this doesn't always go over too well. I've had cashiers act very, very confused when I've done that sort of thing, and I'm sure I've seen some of you people rant about having to make change for crazy mathmos.

Having contemplated various other possibilities (£42.74, £43.04, etc.) I figured that I had so much change on me, I may as well count it out and pay the exact amount. So I counted out twelve pound coins and handed them over "that's twelve pounds there", then counted out 74 pence, "and here's 74p" and finally handed over a twenty pound note.

To me, this is obvious. 12 + 0.74 + 20 = 32.74, but the guy I handed it too spent a good few seconds looking confused and totting it up in his head then apologised for having to do so. So I'm curious about two things:

1. How obvious is that sort of sum to people at large? Is it something that most people can tot up without thinking, or am I just unusually numerate?

2. Given that I didn't want to just give £40 and get a whole lot of extra change, is there any more cashier-friendly method I could have used?

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Also bear in mind. A lot of store cashiers are likely to be non-graduate, non-academic acheivers. And numeracy in and of itself isn't valued unfortunately.

You, otoh, are better at maths than say, I am, and I'm pretty good compared to most. It's also Very (very very very) important I observe that some cashiers are the other way and do the job because the hours are good or it fits in with other stuff, or because they're waiting for a better job, or whatever. I have to say this because that's what SB was doing for a living when we met.

The other comments about expectations are true, as are a preference for receiving small change but having it done quickly. The most confusing thing is when someone has worked out how much to overpay to get a note back (eg bill is 27.50 they pay 32.50) as that just looks like a trick.

And unfortunately there are people that try to trick cashiers into giving too much change, so they tend to be more cautious.

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