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Trick of the Day - Squaring numbers between 41 and 59
by Ani on Wed Mar 11, 2009 7:58 pm
Okay, this question pops up every so often...
46^2!!
you could just foil or do this...
ex.1 46^2
1. subtract the number from 25, write down the answer(21)
2. next, subtract the number from 50(4) and square the answer(16), an the write the answer(16) after the above(21) to get 2116: your answer.
46^2 = 2116
I'm busy right now, find yer own practice!!!
46^2!!
you could just foil or do this...
ex.1 46^2
1. subtract the number from 25, write down the answer(21)
2. next, subtract the number from 50(4) and square the answer(16), an the write the answer(16) after the above(21) to get 2116: your answer.
46^2 = 2116
I'm busy right now, find yer own practice!!!
_________________
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Re: Trick of the Day - Squaring numbers between 41 and 59
by Alex Tatge on Fri Mar 13, 2009 9:01 am
This should go under things to memorize... all squares less than 110 are easy.
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