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The Wilmingtonian, And Delaware Advertiser
Wilmington, New Castle County, Delaware
What is this article about?
A reader responds to an arithmetic puzzle in the previous Wilmingtonian issue, solves a simple example converting cents to dollars, and proposes a complex multiplication problem involving dollars, dimes, cents, and mills, challenging the original author to solve it using only 16 figures without carrying more than one digit at a time. Signed 'N.'
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The arithmetical question proposed in the last number of the Wilmingtonian, perplexing as it may have been, yet by perseverance I think I have obtained the result. In attending to the rule in common use, which is, always to cut off as many decimals as there are in the multiplicand and multiplier, and the remainder is dollars.
EXAMPLE.
Multiply 500 cents
By
500 cents.
Result $25,000
I will now propose a question wrought by the same rule as the above.
EXAMPLE.
Multiply 99909 dolls. 9 dimes, 9 cts. 9 mills,
By 11 thousand, 11 hundred, and 11 dollars,
11 dimes, 11 cts. 11 mills
In finding the answer to this question, I make use of no other figures than those which belong to the answer itself, 16 in number. Neither do I in any instance carry from units place to tens, hundreds, &c. more than one at a time.
Can the author of the first example do as I have done and find the result.
N.
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Letter to Editor Details
Author
N.
Recipient
The Wilmingtonian
Main Argument
the writer solves the previous arithmetic puzzle using a standard rule for decimal places and proposes a new complex multiplication challenge, solved using only 16 figures without carrying more than one digit at a time, daring the original author to match this method.
Notable Details