@kolefem, just try and perform above average. No negative marking.
A little tip is to attempt verbal reasoning(20 questions) and critical reasoning(10 questions) first before going to quantitative questions cos it can be time consuming.
For the quantitative, expect graphical and statistical analysis as first 15 questions while the remaining 5 questions are simple O level maths like average speed and all that.
For the verbal, GMAT 2011-2012 edition, page 100 would help.
For the critical reason, page 346 on the same edition would help.
Best of luck pals