Danivp wrote:
Hi all ,
my maths skills are very rusty (or perhaps non-existent as I can't even do mental maths in my head!).
I believe I will have to start from scratch and learn the concepts first. Is this a good idea to get a high school maths textbook to start with? Or perhaps an online maths course? Once I learn the basics and feel ready I will take a preparatory GMAT/GRE course.
You are on the right path.
GMAT & GRE test quantitative knowledge covered in high school (10+2) level mathematics. Most testtakers have naturally rusty. All of those concepts can be relearned.
I suggest adopting a graded plan that unfolds slowly over time preferred by you.
* Learn and familiarize yourself with basic concepts. Any of the books avaialble with titles such as "Quantitative Ability" will work.
* Solve simple problems and repeat process.
* Progress to more complicated problems, eg. those that combine concepts, complicated calculations, etc.
* When you are preparing, do not worry if these problems are similar to any tests. Your goals are to develop your basic competencies.
* Once you have mastered these competencies, you can progress to targeted practice.
* Targeted practice involves preparing for specific tests, specific types of problems, testtaking skills, etc.
I personally prefer self-paced study from books and materails available online. Any courses you might take may force you into limited time intervals.