Is there any way/trick to solve estimation math? I was reading the comments here that apply to 4 digits numbers, how about millions and billions?
Is there any way/trick to solve estimation math? I was reading the comments here that apply to 4 digits numbers, how about millions and billions?
Hi Anonymous,
in general, the main issues with big numbers is forgetting zeros during operations. Potential tips to deal with big numbers are the following:
Hope this helps,
Francesco
(editiert)
Hello!
My 2 advises for this are -and I struggled with the same thing-:
Hope it helps!
Cheers,
Clara
Dear A,
On the top of what has been already mentioned I would like to recommend you for practicing and improving your mental math you can find also some apps and tools, besides Victor Cheng’s math tool (Magoosh's mental maths app, Mental math cards challenge app etc).
The next important thing is that rather make it on the paper to structure the notes and then to communicate the results clearly rather than make your calculations fast
The time pressure in case interviews is severe and you cannot afford to waste time. But to make your calculations right you shouldn’t be in a rush. So, I would recommend you here to work on both - practice with time limitations and learn how to keep your mind peaceful and concentrated (it might be not so popular advice here, but mediations really make their job here ).
Be comfortable and confident to state your answers not as a questions. Interviewers notice this, and this will not give a credit.
If you need any further help or career advice, feel free to reach me out.
Best,
André
Hi,
I recommend using several tools:
Use math tools - Preplounge, (Mimir math for iOS), Math tool on Viktor Cheng website to practice
Best!
Thank you very much Francesco for the reply. Do consulting firms expecting candidates to do this kind of calculations mentally?
Hi Ornella, for big numbers with 6+ digits you will normally be able to write them down and do the computation on paper. Hope this helps, Francesco