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This is an educational, quick and clever way of squaring any number. Enjoy!
...how is this helping me?
This is not meant to be a brilliant solution to a major issue in your life. It is just a quicker way to calculate certain calculations in your head. Some enjoy exercising their minds, some enjoy math and some calculators.
By sise 1167725727 Reply Spam [+1] Moderate Up Moderate Down RemoveThats cool technique, but it get complicated for squaring number that is not near to base.... There is video for squaring any large number and is really cool
http://www.metacafe.com/watch/454399/speed_calculations_squaring_large_numbers/
Add all numbers, from 1 to N; Multiply by 2; Subtract N.
That's it!
You don't have to multiply! (only by 2).
Example: 4 Square:
(1 + 2 + 3 + 4)*2 - 4
= (10)*2 - 4 = 20 - 4
= 16, thank you, very much!
Luis G. Uribe C,
Caracas, Venezuela
Obviously, the classic algorithm is easier!
To get N square: add the first N none numbers; for example, 5 square:
1 + 3 + 5 + 7 + 9 = 25
Luis G. Uribe C.
Obvious. I doesn't take long to figure something like that out. I figured out the same thing (literally) in 4th grade. On the other hand, I've only met one person who can do this stuff as well as I can.
By erlkonig 1167596052 Reply Spam [+0] Moderate Up Moderate Down RemoveI too have always crafted tricks like this to find patterns, enjoy and excel in math. As much as any subject you need be stimulated with math as well to enjoy and be good at it.
By sise 1167725875 Reply Spam [+0] Moderate Up Moderate Down RemoveSo let me get this right, to square a number i would have to know the square of the previous number, but what if i don't know that? I would then have to work backwards to find a number i can square in my head easily and then work back up again!! .....right yeah thanks
Calculator!
aye go on then ill admit it, its a cool trick though..i will use it in the pub to increase my status as an alpha male of the clever variety, and increase my attraction levels to the ladies thus present.
Is Making Me Wanna Throw Up!!!
By ramin_a 1167565865 Reply Spam [+0] Moderate Up Moderate Down RemoveVery clever, thanks!
By jooge 1167497387 Reply Spam [+0] Moderate Up Moderate Down Removeit's a big help for those who didn't know this trick. Thanks man!
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