ernestrutherford100 (November 30, 1999 at 12:00 am)

i found a trick to square any number who ends in 5. For ex, if you want to find a square of 65, then you take 25 as your answer's last two digit. Then take the first digit of the number, in this case it is 6, add 1 to it and you get 7. Then multiply 7x6=42. This are your first two digits of the answer. So 65 squared is 4225. Another example lets take 185 square. You put 25 as your answers last digit, then take 18 and add 1 you get 19. Multiply 19x18= 342. So your answer is 34225.

SamGlover25 (November 30, 1999 at 12:00 am)

Can you apply this to squaring numbers close to 1000?

abdsrub (November 30, 1999 at 12:00 am)

thank u so much.. too good

aliahmed9971 (November 30, 1999 at 12:00 am)

He is a fool man!!Just simply use your calculator and get answer.This men will make me mad man!!

ModernGolfer (November 30, 1999 at 12:00 am)

EXCELLENT videos, Shahryar! A wonderful way to teach an easy way to calculate.

ailoveu100 (November 30, 1999 at 12:00 am)

i wish 221 peoples got 0 marks in maths

kevino747 (November 30, 1999 at 12:00 am)

Tyl esti de chinease a marde

XDhahahhahaXD (November 30, 1999 at 12:00 am)

omg so good way,why some1 dislike?? noobs...

kennethkrist (November 30, 1999 at 12:00 am)

@ahmadguitar87 The principle is "Squaring a binomial"... It implies that ANY 2-or-more-digit number can be written as a binomial and squared in a realy simple manner...