Editing Comments on NumbersNearMultiplesOfTen

### 50 Comments. ### How to do 56 x 49? I can't get the result. -- Jiggaboo 2009-09-15 21:42 UTC ---- @Jiggaboo that's because it only works if the numbers are "close" to a POWER of 10 (not a multiple)... and yours aren't. I have some multiplication tricks of my own at: http://www.discreteideas.com/2009/08/the-shortest-path/ -- [http://www.discreteideas.com The Count] 2009-10-06 14:52 UTC ---- what determines a + or - in the first step? -- Anonymous 2009-10-29 08:04 UTC ---- base 50 = 10 * 5 56 +6 [56 - 50 = 6] 49 -1 [49 - 50 = -1] 5 * (50 + 6 - 1) | -6 275 |-6 2750 - 6 = 2744 -- Anon. 2009-11-15 09:21 UTC ---- Vedic Math... early 20th century?? Sure about that? -- anon42 2010-04-03 17:01 UTC ---- This is an amazing method. -- Anonymous 2011-02-06 03:00 UTC ---- "Vedic Math... early 20th century?? Sure about that?" Yep. http://en.wikipedia.org/wiki/Bharati_Krishna_Tirthaji -- jsryan 2012-09-06 22:58 UTC

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