Hi,
Any tips on how to do long division. It's been so long that I'm very rusty...
The example on pg 57 of the Equations SG requires you to compute 702 divided by 729. I see you can factor by 9 and make it 78 divided by 81, but even that is time-consuming for me.
Thanks

I don't have any particular shortcuts for long division...but it sounds like what you really need is a bit of practice. You can print out free division worksheets from various websites, including this one:
http://www.freemathworksheets.net/general-math.php

If you generate one of these worksheets, it's a good idea to set it so that the answers are expressed with remainders, since remainders are a concept that shows up frequently on the GMAT.

Some people who are rusty with division can benefit from revising their multiplication tables. You might want to make a times table of all the numbers from 1 through 15 or 20.

-Jad

Howdy. Complex long division on the GMAT is rare, as it is definitely in your best interest to reduce fractions if possible (as explained in the example provided on page 57 of the Strategy Guide)

However, for a quick review of basic long division, I will list a few links that I found with a simple Google search.

http://www.mathsisfun.com/long_division2.html
-extremely basic operations of the long division process

http://www.mathsisfun.com/long_division3.html#skip
-long division with decimal places

http://www.aaamath.com/dec56b-divdeci.htm
-dividing decimals (with quiz)

http://www.aplusmath.com/Worksheets/OnlineDecimalDivision.html
-create your own long division quiz

Hope this helps

Great, thank you!