Trick of the Day - Squaring numbers between 41 and 59

Go down

Trick of the Day - Squaring numbers between 41 and 59

Post by Ani on Wed Mar 11, 2009 8:58 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!!!
avatar
Ani
Vice-President
Vice-President

Male Number of posts : 236
Age : 26
Location : Kanto
Registration date : 2008-05-02

View user profile

Back to top Go down

Re: Trick of the Day - Squaring numbers between 41 and 59

Post by Alex Tatge on Fri Mar 13, 2009 10:01 am

This should go under things to memorize... all squares less than 110 are easy.
avatar
Alex Tatge
Webmaster
Webmaster

Male Number of posts : 58
Location : In yore base, killing yore d00ds.
Registration date : 2008-09-22

View user profile http://fmylife.com

Back to top Go down

Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum