Maths. | |
Anonymous Coward User ID: 19951199 Australia 08/23/2012 08:37 AM Report Abusive Post Report Copyright Violation | |
gaton User ID: 22431284 Poland 08/23/2012 08:39 AM Report Abusive Post Report Copyright Violation | Basic operations are not maths per se :) Finally... negative public relations agency... [link to hitman.net84.net] |
ClarkF (OP) User ID: 22080447 Norway 08/23/2012 08:49 AM Report Abusive Post Report Copyright Violation | |
gaton User ID: 22431284 Poland 08/23/2012 08:54 AM Report Abusive Post Report Copyright Violation | “If you only knew the magnificence of the 3, 6 and 9, then you would have a key to the universe.” Quoting: ClarkF -Tesla Number 3 has quite special significance considering it from creation's (not religious but phisical) point of view. But I am quite suprpised that Tesla knew it so long time ago... Finally... negative public relations agency... [link to hitman.net84.net] |
Anonymous Coward User ID: 22242881 United Kingdom 08/23/2012 08:54 AM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 21666560 United States 08/23/2012 08:58 AM Report Abusive Post Report Copyright Violation | 9x1 = 9 9x2 = 18 = 1+8 = 9 9x3 = 27 = 2+7 = 9 9x4 = 36 = 3+6 = 9 9x5 = 45 = 4+5 = 9 and so on. you'll also notice that when multiplying a number by 9, say 7 for example, you drop the number by 1 (6) and then just add whatever digit at the end that makes that number (6) equal 9 (63). these are all simple tricks used to help mental math work faster. did you not learn this while learning your multiplication tables? |
ClarkF (OP) User ID: 22080447 Norway 08/23/2012 09:00 AM Report Abusive Post Report Copyright Violation | |
ClarkF (OP) User ID: 22080447 Norway 08/23/2012 09:02 AM Report Abusive Post Report Copyright Violation | you do realize that 9x any number, then adding the two digits of the number with always give you 9, right? Quoting: Anonymous Coward 21666560 9x1 = 9 9x2 = 18 = 1+8 = 9 9x3 = 27 = 2+7 = 9 9x4 = 36 = 3+6 = 9 9x5 = 45 = 4+5 = 9 and so on. you'll also notice that when multiplying a number by 9, say 7 for example, you drop the number by 1 (6) and then just add whatever digit at the end that makes that number (6) equal 9 (63). these are all simple tricks used to help mental math work faster. did you not learn this while learning your multiplication tables? No. We had to memorize the whole thing! |
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