### Bookshelf

Total GMAT MathJeff's complete Quant guide, on sale now! |

Total GMAT VerbalEverything you need to ace GMAT Verbal! |

**1,800 Practice Math Questions**

Buy Jeff's books at Amazon.com

GMAT Official Guide, with IR

OG Math | OG Verbal

OG12 & Quant Rev solutions!

**GMAT Question of the Day**

Beginner's Guide to the GMAT

GMAT Hacks Affiliate Program

### Categories

- General Study Tips
- Goals and Planning
- CAT Strategy
- The Mental Game
- GMAT Math Strategy
- GMAT Math Topics
- Mental Math
- Data Sufficiency
- Critical Reasoning
- Reading Comprehension
- Sentence Correction
- Analytical Writing Assessment
- Integrated Reasoning
- IR Explained
- Business School Admissions
- GMAT Prep Resources
- Practice Questions
- Total GMAT Math
- Total GMAT Verbal
- GMAT 111

## Video: GMAT Absolute Value

###### January 5, 2012

You should follow me on Twitter. While you're at it, take a moment to
subscribe to
GMAT Hacks via RSS or Email. |

Back in middle school, you probably learned how to evaluate an expression that contains a pair of absolute value signs. But can you manipulate an expression when variables are *inside* the absolute value signs?

When you take the GMAT, the quant section may contain a question or two requiring you to do so. Most students aren't ready.

My latest video covers the basics of absolute value, which will set you ahead of most test-takers. If you want to hone your skills even more, there's a chapter with a drill and test-like practice questions in Total GMAT Math.

**About the author:** *Jeff Sackmann has written many
GMAT preparation books, including the popular Total GMAT Math,
Total GMAT Verbal, and GMAT 111. He has also created
explanations for problems in The Official Guide, as well as
1,800 practice GMAT math questions.*

Total GMAT Math
The comprehensive guide to the GMAT Quant section. It's "far and away the best study material
available," including over 300 realistic practice questions and more than 500 exercises! |