Hi guys
I have done about 100 PS questions on the OG 11th and 12th edition. After analysing my answers, I see that my weakest area is "operations on rational numbers". I do not like this trend as a lot of the questions on the GMAT test touches this area.
I would really appriciate if you guys have some tips on how to improve in this area. Can you recommend some great books, webpages or similar? And do you have some tips on how to think and approach these types of questions?
Thanks a lot!
I have done about 100 PS questions on the OG 11th and 12th edition. After analysing my answers, I see that my weakest area is "operations on rational numbers". I do not like this trend as a lot of the questions on the GMAT test touches this area.
I would really appriciate if you guys have some tips on how to improve in this area. Can you recommend some great books, webpages or similar? And do you have some tips on how to think and approach these types of questions?
Thanks a lot!

















