Hi Manat,
You ask a fantastic question. UNFORTUNATELY, there really is no definitive answer. To improve your quant score by 100+ points, there isn’t one set of quant topics that you must learn while other topics can be ignored. Remember, part of the difficulty of the GMAT is the fact that so few quant questions are asked (only 31), but so many concepts can be tested. Thus, to be successful on the GMAT, you must know ANY quant topic that could be thrown your way on test day.
Moving forward, the best thing you can do is cast a wide net and focus on improving your overall GMAT quant skills. The best way to accomplish this is to follow a linear and structured study plan that allows you to individually learn each GMAT quant topic and practice each topic until you’ve gained mastery. By studying in such a way, you methodically improve your quant skills and leave no stone unturned.
Certainly, if you’d like more specific advice on how to improve your quant skills, feel free to reach back out. You also may find it helpful to read this article about
How to Increase Your GMAT Quant Score.
Good luck!