Data Sufficiency (DS) prep

I took a Data Sufficiency (DS) Skill Building Quiz from the Borders-Kaplan GMAT Diagnostic Test and Practice Questions book.  Out of 35 questions, I got 31 correct.  While that may seem like a good score, the questions in this book are a lot easier than those in other books, but nonetheless, still good practice I suppose. 

I\’ve realized that some of my mistakes with DS are because I tend to rely on my intuition as opposed to setting up equations.  I started to write down the AD/BCE grid last week and it seems to have helped me eliminate answer choices, but i still need to get in the habit of setting up equations as this will help me visualize what can and can\’t be answered with the available information. 

More DS today.