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Nairaland Forum / Nairaland / General / Education / 12 Useful Math Hacks That They Didn't Teach You In School (6741 Views)
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Re: 12 Useful Math Hacks That They Didn't Teach You In School by 4ormidable(m): 12:57pm On Jan 23, 2016 |
Vivly: Maybe it's the normal addition to the LHS of Tens, Hundreds e.t.c. I.e. 67 * 11 6 « [6+7] « 7 [6+1] « 3 « 7 7«3«7 =>737 Also: 378 * 11 3 « [3+7] « [7+8] « 8 3 « [3+7+1] « 5 « 8 [3+1 ]« 1 « 5 « 8 4«1«5«8 => 4158 1 Like |
Re: 12 Useful Math Hacks That They Didn't Teach You In School by fabre4: 1:59pm On Jan 23, 2016 |
Educative posts like this hardly make front page |
Re: 12 Useful Math Hacks That They Didn't Teach You In School by Joe82834(m): 7:28am On Apr 30, 2016 |
Dongreat:Just seeing this.funny enough,when it comes to multiplying by 11,no one taught me any trick,I just stumbled on it smhw.I remember clearly in my js2 n 3,l always played with my calculator ,manipulating numbers during my spare time n that was he I notice d relationship firstly with 121,132,143,154,165 n so I worked on it 4 higher numbers n saw d need to add when d sum is greater than 10.nice post @op 1 Like |
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