I was 7 when I did this. When my own children were aged 7, they weren't being taught adding up in base 10, let alone base 12.
Britain went decimal on 15th February, 1971.
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9:40am on Monday, 11th July, 2005:
Anecdote
Here's an extract from my school mathematics book, dated 17th November, 1967:
I was 7 when I did this. When my own children were aged 7, they weren't being taught adding up in base 10, let alone base 12.
Britain went decimal on 15th February, 1971.
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Copyright © 2005 Richard Bartle (richard@mud.co.uk).