MULTIPLYING ROMAN NUMBERS
XLII x LXI = ?
XLII LXI
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half *XXI CXXII double
X CCXLIV
* V CDXXCVIII
II DCCCCLXXVI
* I MDCCCCLII
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Pick out the odd numbers on the
halfed side and add the corresponding
doubled numbers together and you
get the answer. Oddnumber = *
(Remark: Half of XXI is X and half of
V is II and so be it.)
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XXI => CXXII
V => CDXXCVIII
I => MDCCCCLII
+
------------
MMDLXII
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So XLII x LXI = MMDLXII
Nice things you can learn by
paying attention while watching TV
or surfing the Internet.
42 x 61 = 2562 looks easier.
Comments to:
Peter@kiruna.se