Oh you're just making fun of us now. It is not so funny. See below a picture of the rear of the exercise books that we had at school when I was a kid. We had to learn and be able to use this stuff, and would have to do long addition, multiplication and division with what was many different number bases. Tons, hundredweight, stones, pounds, ounces, pennyweights, grains. 7 different column headings. Hundreds Tens and Units were a doddle.
Although I suspect that we were given those while the thick kids *. were still struggling with 4+5.
* this post contains the correct measures of cognitive competence that were prevalent at the time,
Billion - used to mean a million million when I was a kid, but we adopted the 1000 million at some point, but it was a gradual thing. There wasn't a specific changeover date that I remember. There was a date when it became law that we use metric measurements.
The financial system changed from pounds, shillings and pence to decimal on 15 Feb 1971. A cunning way of hiding the massive inflation that was taking place at the time. Few batted an eyelid at things that cost a shilling were now 10p - a 240% price increase.
So I still know that 40 old pence is Three and fourpence , 40d =3s 4d or 3/4 and 70 inches is 5'10"
and 30 inches is 2 shillings and sixpence, or half a crown.
But enough of this drivel. I'm off to ride my bike - a Honda ST-9 gill.
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