[Maths-Education] Durell's 'Arithmetic'

[Paul Garcia]

on 10/07/2002 9:06, tr202@cam.ac.uk at tr202@cam.ac.uk wrote:

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> This request is rather a long shot, but you never know ...
> 
> It concerns a school textbook, "A General Arithmetic for Schools" by
> Clement V. Durell, published, I believe, in 1951. Unfortunately I am unable
> to trace a copy in any Cambridge library. I have copies of some other
> Durell textbooks, but not this one.
> 
> I recollect that an early section of the book was (is) on divisibility
> tests (by 3, 9, 11 etc as usual). Is anybody in a position to be able to
> confirm this?
> 
I have a 1975 edition of this book (first published in 1936), and on pages 1
and 2 there are indeed tests for divisibility by 2, 4, 8, 5, 3, 9, 11, 6,
12, 25 and 125.  They are stated without justification.



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Yours sincerely,

Paul Garcia

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