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Hi guys where can I find a comprehensive list of relevant math formulas which I can keep handy and use while I practice?

Bain BCG Case Maths Case Prep LEK McKinsey OC&C

Most recent answer on Jan 14, 2024

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 Jan 13, 2024

Highest-rated McKinsey coach (ratings, offers, sessions) | 500+ offers | Author of The 1% & Consulting Career Secrets

Hi there, While others have posted some lists here with some valuable information, I want to make a couple of comments about case math in general: 1. As a generalist consultant applicant, you do not need to know any spe ... (read entire answer)

4
Answers

292
Views

40
Total Upvotes

on Jan 14, 2024 on Jan 14, 2024
Last Activity

Practice Case Specific Maths Questions

Case Maths Math Skills Required in Case Interviews

Most recent answer on Nov 06, 2023

Alberto

Expert

Ex-McKinsey Associate Partner | +15 years in consulting | +200 McKinsey 1st & 2nd round interviews

Alberto

Expert

gave the best answer on Nov 06, 2023

Ex-McKinsey Associate Partner | +15 years in consulting | +200 McKinsey 1st & 2nd round interviews

Hi there, Best way to practice math part of cases is doing actual cases. Look for online casebooks from business schools and consider getting a coach to learn the basics. If you want to specifically improve the mental a ... (read entire answer)

3
Answers

455
Views

13
Total Upvotes

on Nov 06, 2023 on Nov 06, 2023
Last Activity

Best apps for mental maths???

apps Case Maths maths mental math mental maths apps

Recent activity on Oct 16, 2023

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
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32.4 k
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10
Total Upvotes

on Oct 16, 2023 on Oct 16, 2023
Last Activity

Looking for exciting discussions from the community?

Math errors!!

Case Maths mental math

Recent activity on Mar 30, 2022

gave the best answer on Mar 30, 2022

Hi there, This isn't trivial at all - don't worry, you're not alone and it's a common problem! Rote Math Practice Rocketblocks and Math-Drills have great math practice drills Organization Have a seperate "math" scrap sh ... (read entire answer)

6
Answers

916
Views

58
Total Upvotes

on Mar 30, 2022 on Mar 30, 2022
Last Activity

Improving math between first and second round

Case Maths

Most recent answer on Nov 21, 2021

gave the best answer on Nov 21, 2021

Hi there, First of all, you're not going to have to divide 103.4 by 48.3…that's absurd! My first tip is to understand the “limit” of what will be asked in a regular case…you'll want to prepare for that. Now, in terms of ... (read entire answer)

4
Answers

819
Views

29
Total Upvotes

on Nov 21, 2021 on Nov 21, 2021
Last Activity

NPV calculation error?

Case Maths

Most recent answer on Aug 02, 2021

Agrim

Expert

BCG Dubai Project Leader | Learn to think like a Consultant | Free personalised prep plan | 6+ years in Consulting

Agrim

Expert

gave the best answer on Aug 02, 2021

BCG Dubai Project Leader | Learn to think like a Consultant | Free personalised prep plan | 6+ years in Consulting

NPV is calculated for 'a' project. In this case that project is 'buying an animal for the zoo'. Hence, you will consider the elements relevant for the project only: Revenue from the project --> Additional reven ... (read entire answer)

3
Answers

1.1 k
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14
Total Upvotes

on Aug 02, 2021 on Aug 02, 2021
Last Activity

NPV /WAAC ?

Bain & Company BCG Case Interview Case Maths Math problem MBB McKinsey & Company NPV

Question edited on Jul 26, 2021

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 Jul 22, 2021

#1 Coach for Sessions (4.500+) | 1.500+ 5-Star Reviews | Proven Success (➡ interviewoffers.com) | Ex BCG | 10Y+ Coaching

Hi there, Several questions ;) Let me go one by one. 1) NPV The correct NPV formula closer to what you reported is: NPV = -Initial Investment + (FCF/Discount Rate) Where FCF= Free cash flow of the project g ... (read entire answer)

3
Answers

2.4 k
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9
Total Upvotes

on Jul 26, 2021 on Jul 26, 2021
Last Activity

Moltiplications/divisions with 6+ digits numbers, estimation math_Tricks

Case Maths estimation fast math GMAT MathSkills IB Guessestimation Math problem

Most recent answer on Nov 16, 2020

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 Jun 16, 2020

#1 Coach for Sessions (4.500+) | 1.500+ 5-Star Reviews | Proven Success (➡ interviewoffers.com) | Ex BCG | 10Y+ Coaching

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: Use correctly 10^ powers in your math computation. For e ... (read entire answer)

4
Answers

2.4 k
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2
Total Upvotes

on Nov 16, 2020 on Nov 16, 2020
Last Activity

Feeling stuck at Case Practice

case math case math' Case Maths case structure Case structure and frameworks Case Structuring Consutingmath fast math GMAT MathSkills IB Structure

Most recent answer on Oct 26, 2020

Adi

Expert

Accenture, Deloitte | Precision Case Prep | Experienced Interviewer & Career Coach | 15 years professional experience

Adi

Expert

gave the best answer on Oct 20, 2020

Accenture, Deloitte | Precision Case Prep | Experienced Interviewer & Career Coach | 15 years professional experience

Hi there, Two tips : 1. Practice, practice, and just dont give up. Give yourself time & celebrate little successes. Take a break for couple of days here and there and do something fun/creative to unclock the tra ... (read entire answer)

6
Answers

1.5 k
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30
Total Upvotes

on Oct 26, 2020 on Oct 26, 2020
Last Activity

Math Equations & Their Use

Case Maths

Most recent answer on Sep 21, 2020

Clara

Expert

McKinsey | Awarded professor at Master in Management @ IE | MBA at MIT |+180 students coached | Integrated FIT Guide aut

Clara

Expert

gave the best answer on Sep 21, 2020

McKinsey | Awarded professor at Master in Management @ IE | MBA at MIT |+180 students coached | Integrated FIT Guide aut

Hello! Altought there are some classic responses here (Interest rates calculations, compound margin, NPV, etc.), truth is that in 99% of the cases is not going to be anything more complicated than break-even analysis. ... (read entire answer)

3
Answers

1.7 k
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12
Total Upvotes

on Sep 21, 2020 on Sep 21, 2020
Last Activity

Best Casebook to practice McKinsey Style interviewer led maths heavy cases

Case Maths casebook McKinsey Word problems

Most recent answer on Sep 21, 2020

Vlad

Expert

McKinsey / Accenture Alum / Got all BIG3 offers / Harvard Business School

Vlad

Expert

gave the best answer on Sep 21, 2018

McKinsey / Accenture Alum / Got all BIG3 offers / Harvard Business School

Hi, First of all your question has several statements that are not true to life: McKinsey Style interviewer led - at McKinsey you can have both Candidate and Interviewer led cases. In the first round, you'll have ... (read entire answer)

2
Answers

7.5 k
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2
Total Upvotes

on Sep 21, 2020 on Sep 21, 2020
Last Activity

Blacked out in McKinsey math question - how bad is it?

BCG Case Maths McKinsey

Most recent answer on Sep 01, 2020

gave the best answer on Aug 20, 2020

Honestly, it's not good. Especially with McKinsey (they can really be sticklers on the small things). A very important point here: Did their "nudge" trigger you? i.e. thanks to their nudge were you able to move forwar ... (read entire answer)

7
Answers

3.0 k
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29
Total Upvotes

on Sep 01, 2020 on Sep 01, 2020
Last Activity

Do you have a question for our consulting experts, too?

Fast Maths Expectations | MBB

Case Maths maths MBB

Most recent answer on Jul 10, 2020

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
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2.8 k
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59
Total Upvotes

on Jul 10, 2020 on Jul 10, 2020
Last Activity

Am I wrong?

Case Maths

Recent activity on Feb 11, 2020

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 Feb 10, 2020

McKinsey Senior EM & BCG Consultant | Interviewer at McK & BCG for 7 years | Coached 350+ candidates secure MBB offers

Agree with you and Vlad on the result. The given solution seems flawed. Cheers, Sidi

7
Answers

1.6 k
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2
Total Upvotes

on Feb 11, 2020 on Feb 11, 2020
Last Activity

14 results

Consulting Q&A – Ask Questions about Your Career

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