Replies

To: afraidfortherepublic

SPPOILER ALERT!!!

Multiplying two numbers in the nineties as a very easy shortcut.....

93 times 97 for example use the difference from 100.

93 x 97 = (100-7)*(100-3)
Now remember some algebra regarding quadratic equations to multiply those

= 100*100 -100*7 -100*3 +7*3
= 10,000 -700 -300 +21 = 9,021

10 posted on 12/02/2014 10:40:37 AM PST by mason-dixon (As Mason said to Dixon, you have to draw the line somewhere.)

To: mason-dixon

Excellent! Thanks for the tip

11 posted on 12/02/2014 10:44:02 AM PST by olepap (Your old Pappy)

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