Comments on: Multiplying on an Abacus http://threesixty360.wordpress.com/2009/06/25/multiplying-on-an-abacus/ 12 tables, 24 chairs, and plenty of chalk Thu, 30 May 2013 02:26:42 +0000 hourly 1 http://wordpress.com/ By: mason0190 http://threesixty360.wordpress.com/2009/06/25/multiplying-on-an-abacus/#comment-15398 Tue, 08 Jan 2013 04:45:12 +0000 http://threesixty360.wordpress.com/?p=2625#comment-15398 I only have a six-space abacus so this is infinitely harder.

]]> By: Subhash http://threesixty360.wordpress.com/2009/06/25/multiplying-on-an-abacus/#comment-14553 Wed, 10 Oct 2012 11:46:11 +0000 http://threesixty360.wordpress.com/?p=2625#comment-14553 I got it. But still it is looking bit more time consuming. Is there any other shortcut way to do the multiplication using abacus board.

]]> By: yeshu http://threesixty360.wordpress.com/2009/06/25/multiplying-on-an-abacus/#comment-12758 Sun, 25 Mar 2012 04:57:12 +0000 http://threesixty360.wordpress.com/?p=2625#comment-12758 i have learnt dis wen i was in my 3 grade and nw i totally forgot multiplication and division ….. bt i still remeber addition and subraction…

aree yaaar make it more easy for me 2 learn …god please…

]]> By: Tim http://threesixty360.wordpress.com/2009/06/25/multiplying-on-an-abacus/#comment-11214 Fri, 06 May 2011 15:42:09 +0000 http://threesixty360.wordpress.com/?p=2625#comment-11214 Man I still don’t get it. I must be stupid.
I can add and subtract but this multiplying lark is just so hard. :(

]]> By: OMAIGAWDTHANKYOU http://threesixty360.wordpress.com/2009/06/25/multiplying-on-an-abacus/#comment-11065 Wed, 12 Jan 2011 05:01:16 +0000 http://threesixty360.wordpress.com/?p=2625#comment-11065 Oh my god thank yous o much i finally get this! :D
ive been seearching all over for an easy explanation, and this did it!
(i like your dino)

]]> By: BD Sharma http://threesixty360.wordpress.com/2009/06/25/multiplying-on-an-abacus/#comment-10720 Mon, 27 Sep 2010 12:13:07 +0000 http://threesixty360.wordpress.com/?p=2625#comment-10720 Its really interesting, ultimately I searched this site for my kids to tell something about ancient abacus utility.

Regards

]]> By: Jason Dyer http://threesixty360.wordpress.com/2009/06/25/multiplying-on-an-abacus/#comment-9505 Fri, 26 Jun 2009 16:28:05 +0000 http://threesixty360.wordpress.com/?p=2625#comment-9505 re: historical abacii I mentioned, before the Chinese abacus there was a “calculating board”, esentially a checkerboard with rods that indicated numbers. The method of multiplication is distinct. There are details starting on page 283 of The Universal History of Numbers.

What I find interesting about the board is one gets an impression how the Chinese were able to discover matrix manipulations so early. (That is, the natural setup of the rods is to place the numbers in a grid, so the discovery is almost inevitable.)

]]> By: Sue http://threesixty360.wordpress.com/2009/06/25/multiplying-on-an-abacus/#comment-9393 Fri, 26 Jun 2009 14:03:19 +0000 http://threesixty360.wordpress.com/?p=2625#comment-9393 And in fact, it’s even faster than using a calculator, once you’re really good at it. Well, that’s apparently only if you’re throwing in some other difficulties. I just found a (very old) reference that says: “[The] abacus beat the electric calculating machine in adding, subtracting, dividing and a problem including all three with multiplication thrown in… Only in multiplication alone did the machine triumph…”

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