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01282007 11:39 PM 10 years ago  Post 1 
chopperman1 rrKey Veteran Huntsville, AL  An interesting new way to mulipy numbers
 

01292007 08:42 AM 10 years ago  Post 2 
Arthur rrApprentice Wales. UK  Fascinating. Anyone know the mathematical theory behind that? Thats assuming it works all every time. Only works with whole numbers apparently.  

01292007 02:03 PM 10 years ago  Post 3 
copperclad rrElite Veteran NY  count the number of digits to the right of the decimal points , ( in this case three ) then just put the decimal point three positions from the right in your answer ( 39.483 ) , danaOnly works with whole numbers apparently.  

01292007 09:32 PM 10 years ago  Post 4 
Ed Moore rrNovice West Sussex, UK  If it were 2 x 2, you'd have this: // , intersecting this: \\ , and so end up with 4 points of intersection. It's sort of commonsensy. To look at it another way, let's randomly say we want to do 7 x 9.You draw a box. 7cm x 9cm, and then split it up into a 1cm grid. If you count the number of boxes, you get 63! Sure, obvious, but that video isn't really much more than that.Fascinating. Anyone know the mathematical theory behind that?  

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