what does that mean by the way, y*2*2 ? :/ Just curious....

I tackle the biggest chunk I can do without any calculation. I can do any multiplication up to about 16 the same as someone who knows their times tables knows that 5 * 5 = 25 without thinking. So 9 * 150 is a no brainer.

I would calculate it by multiplying 63 by 30 (an easy enough sum to do, as there is no carrying over from the units column), then take away 2*63. Thus, 63 * 28 = 63 * (30 - 2) = 63 * 30 - 63 * 2 = 1890 - 126 = 1764.

Rember Y2K?  [2000 A.D.]

Y = 1, K = 1,000

1 * 2 * 1,000 = 2,000

Sometime recently I heard something about a Y10K issue; the tenth anniversary of Y2K; but I forgot what it was about.  But anways, it must have been as follows:

Y = 1, K = 201

1 * 10 * 201 = 2,010

The Y10K issue relates to the year 10,000. When the year ticks over from 9999 to 10,000 then all those old COBOL programs are going to crash.

What the hell was the Y2K scare about exactly ? All I remember was being depressed after Christmas cause word went around that the world was suppose to had ended in the year 2000 or something ?

Specifically I recently heard some talk about Y10K referring to 2010.  I forgot what it exactly was but it was a spin-off of the 10th. anniversary of Y2K.

I though Y in Y2K stood for "Year"

Year 2K, or Year 2*1000, or Year 2000.

Technically the Y in Y2K does stand for "Year".  But think differently; think algebra.  You've got a constant sandwiched between two variables.  But anyways, "Year" implies a unit; just one year unless otherwise specified; so Y=Year=1.

True indeed! I hadn't thought of it that way...