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Best apps for mental maths???

apps Case Maths maths mental math mental maths apps
Recent activity on Oct 16, 2023
The best answer (on Jul 08, 2019) is from:
Vlad
Expert
McKinsey / Accenture Alum / Got all BIG3 offers / Harvard Business School
Vlad
Expert
 gave the best answer on Jul 08, 2019
McKinsey / Accenture Alum / Got all BIG3 offers / Harvard Business School
Hi, You can use preplounge tool, Viktor Cheng tool, Mimir Math on iOS Also, I recommend practicing the following: Learn how to multiply double digit numbers (https://www.youtube.com/watch?v=6ndkkPZYJHo) Learn ... (read entire answer)
7
Answers
32.4 k
Views
10
Total Upvotes
on Oct 16, 2023 on Oct 16, 2023
Last Activity

Math - Finance and Accounting Formulas

maths
Most recent answer on Aug 31, 2023
The best answer (on Aug 05, 2023) is from:
Benjamin
Expert
Ex-BCG Principal | 8+ years consulting experience in SEA | BCG top interviewer & top performer
Benjamin
Expert
 gave the best answer on Aug 05, 2023
Ex-BCG Principal | 8+ years consulting experience in SEA | BCG top interviewer & top performer
Hi, There are a couple of resources on Preplounge, including a new one that was recently announcted (New on PrepLounge: Two new expert guides | PrepLounge.com) I'd like to share a few thoughts regarding formulas and qua ... (read entire answer)
6
Answers
422
Views
29
Total Upvotes
on Aug 31, 2023 on Aug 31, 2023
Last Activity

Does Victor Cheng's maths tool still work?

maths MBB
Most recent answer on Jun 23, 2021
The best answer (on Jun 22, 2021) is from:
Antonello
Expert
McKinsey | NASA | top 10 FT MBA professor for consulting interviews | 6+ years of coaching
Antonello
Expert
 gave the best answer on Jun 22, 2021
McKinsey | NASA | top 10 FT MBA professor for consulting interviews | 6+ years of coaching
Hi,  I think this PL tool is even better. Let me know :) https://www.preplounge.com/en/mental-math Antonello
3
Answers
2.6 k
Views
31
Total Upvotes
on Jun 23, 2021 on Jun 23, 2021
Last Activity

Maths Final Answer Sense-Checking

maths
Most recent answer on Apr 30, 2021
The best answer (on Apr 28, 2021) is from:
Florian
Expert
Highest-rated McKinsey coach (ratings, offers, sessions) | 500+ offers | Author of The 1% & Consulting Career Secrets
Florian
Expert
 gave the best answer on Apr 28, 2021
Highest-rated McKinsey coach (ratings, offers, sessions) | 500+ offers | Author of The 1% & Consulting Career Secrets
Hey there, Yes, that is a crucial step before communicating the answer. If you make a mistake in math and spot it, it will hardly influence your performance. However, once the wrong number is communicated its harder ... (read entire answer)
4
Answers
899
Views
43
Total Upvotes
on Apr 30, 2021 on Apr 30, 2021
Last Activity

Mental Math Audio Tool

maths mental math mental maths apps
Most recent answer on Mar 19, 2021
The best answer (on Mar 19, 2021) is from:
Gaurav
Expert
#1 MBB Coach(Placed 750+ in MBBs & 1250+ in Tier2)| The Only 360 coach(Ex-McKinsey + Certified Coach + Active recruiter)
Gaurav
Expert
 gave the best answer on Mar 19, 2021
#1 MBB Coach(Placed 750+ in MBBs & 1250+ in Tier2)| The Only 360 coach(Ex-McKinsey + Certified Coach + Active recruiter)
Hi Mark! Have you already checked out all the links provided on Preplounge? You can find more information here: https://www.preplounge.com/en/consulting-forum/best-resources-for-math-improvement-for-a-complete-number- ... (read entire answer)
3
Answers
2.3 k
Views
38
Total Upvotes
on Mar 19, 2021 on Mar 19, 2021
Last Activity

How fast (sums/minute) should you be able to do mental math?

maths
Most recent answer on Oct 14, 2020
The best answer (on Oct 13, 2020) is from:
Francesco
Expert
#1 Coach for Sessions (4.500+) | 1.500+ 5-Star Reviews | Proven Success (➡ interviewoffers.com) | Ex BCG | 10Y+ Coaching
Francesco
Expert
 gave the best answer on Oct 13, 2020
#1 Coach for Sessions (4.500+) | 1.500+ 5-Star Reviews | Proven Success (➡ interviewoffers.com) | Ex BCG | 10Y+ Coaching
Hi there, I agree with Henning, you don’t need to perform math in your head unless the interviewer explicitly asks to do so, which is rare. If you really have to do math in your head due to the interviewer's request ... (read entire answer)
7
Answers
3.0 k
Views
50
Total Upvotes
on Oct 14, 2020 on Oct 14, 2020
Last Activity

What is DCF?

Interview maths MBB practice
Most recent answer on Sep 10, 2020
The best answer (on Sep 03, 2020) is from:
Vlad
Expert
McKinsey / Accenture Alum / Got all BIG3 offers / Harvard Business School
Vlad
Expert
 gave the best answer on Sep 03, 2020
McKinsey / Accenture Alum / Got all BIG3 offers / Harvard Business School
Hi, The case is a simplified version of the real-life problem. Thus a lot of approaches are simplified for the sake of saving time In the case of DCF, usually, you will calculate a very simplified version of it: ... (read entire answer)
6
Answers
3.8 k
Views
15
Total Upvotes
on Sep 10, 2020 on Sep 10, 2020
Last Activity

What is the fastest way to calculate Growth

interviews MarketGrowth maths MBB
Most recent answer on Aug 31, 2020
The best answer (on Aug 31, 2020) is from:
Antonello
Expert
McKinsey | NASA | top 10 FT MBA professor for consulting interviews | 6+ years of coaching
Antonello
Expert
 gave the best answer on Aug 31, 2020
McKinsey | NASA | top 10 FT MBA professor for consulting interviews | 6+ years of coaching
Hi, in addition to the solution proposed by Giulia, I would like to suggest similar cases in the platform to practice with: https://www.preplounge.com/en/consulting-forum/how-much-would-you-charge-to-clean-all-the-w ... (read entire answer)
2
Answers
1.2 k
Views
2
Total Upvotes
on Aug 31, 2020 on Aug 31, 2020
Last Activity

Fast Maths Expectations | MBB

Case Maths maths MBB
Most recent answer on Jul 10, 2020
The best answer (on Apr 20, 2020) is from:
Sidi
Expert
McKinsey Senior EM & BCG Consultant | Interviewer at McK & BCG for 7 years | Coached 350+ candidates secure MBB offers
Sidi
Expert
 gave the best answer on Apr 20, 2020
McKinsey Senior EM & BCG Consultant | Interviewer at McK & BCG for 7 years | Coached 350+ candidates secure MBB offers
Hi Anonymous! I have written this earlier, and I will repeat it: the obsession with "Mental Math" is one of the many damaging nonsense myths that are flying around! Mental math is simply not something that is required ... (read entire answer)
9
Answers
2.8 k
Views
59
Total Upvotes
on Jul 10, 2020 on Jul 10, 2020
Last Activity

Techniques for division?

Case Calculations Division maths
Most recent answer on Jun 09, 2020
The best answer (on Jun 08, 2020) is from:
Vlad
Expert
McKinsey / Accenture Alum / Got all BIG3 offers / Harvard Business School
Vlad
Expert
 gave the best answer on Jun 08, 2020
McKinsey / Accenture Alum / Got all BIG3 offers / Harvard Business School
Hi, I recommend learning a division table. Learn all the numbers until 1/10 (e.g. 1/3 = 33.3%, 1/4 = 25%, 3/4 = 75%, 1/6 = 16.7%, etc) This method will help you calculate any percentage problems like market shares o ... (read entire answer)
7
Answers
1.3 k
Views
19
Total Upvotes
on Jun 09, 2020 on Jun 09, 2020
Last Activity

Efficient ways of doing division calculations?

maths maths project skills
Recent activity on Dec 08, 2018
Anonymous gave the best answer on Dec 08, 2018
Hey there, A method I use a lot which works for generally more simple calculations: breaking down divisions into simpler parts. The key principle here is that it's easier to divide by small numbers - 2, 3, 5, 10. Th ... (read entire answer)
4
Answers
3.7 k
Views
4
Total Upvotes
on Dec 08, 2018 on Dec 08, 2018
Last Activity

Comfort with numbers

maths numbers
Recent activity on Sep 17, 2018
The best answer (on Sep 17, 2018) is from:
Guennael
Expert
Ex-MBB, Experienced Hire; I will teach you not only the how, but also the why of case interviews
Guennael
Expert
 gave the best answer on Sep 17, 2018
Ex-MBB, Experienced Hire; I will teach you not only the how, but also the why of case interviews
You can success at a case interview even if you math is bad... but only if you are particularly lucky - and nobody gets lucky every single time. Consultancies will make sure to test your math skill in at least one of th ... (read entire answer)
2
Answers
2.2 k
Views
1
Total Upvotes
on Sep 17, 2018 on Sep 17, 2018
Last Activity
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