> What's the name of this strange method?
> How does it work?
>
https://www.facebook.com/photo.php?v=3D1378789205699173&set=3Dvb.1374352292=
809531&type=3D2&theater

It's a graphical way of showing the actions that you would do when
performing the same calculation by other means.
It gets messy when you get larger digits involved.

eg  27 x 63 involves the 6 & 7 lines crossing to give 42 intersections.
You COULD
      count all 42 crossings,
or   add 6, 7 times
or   add 7, 6 times
but learning that 6 x 7  =3D 42 is generally easier for most people.

If instead of drawing groups of lines you write the pairs of numbers where
the line intersections would be and carry out the multiplications of pairs
of single digit from memory then you get the graphical layout advantages of
this method plus the speed gains from remembering your 'times tables'.


    Russell
--=20
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