Build mental math skills to get accepted into the best management consulting firms

like McKinsey, Bain, BCG, Strategy&, Deloitte Consulting, Oliver Wyman, Accenture, AT Kearney, L.E.K. Consulting...

Your only all-in-one solution to tackle mental math preparation for consulting case interviews and written tests

  • right theory of quick calculation
  • training machines for internalising theory
  • feedback and progress tracking

Mental math is one of the aspects which you have to master to successfully pass consulting written test and case interviews

And by master we mean this

69 × 79 =

Test your mental math skills in desktop site version

If you scored anything below 20 points, you may
consider improving your mental math

So we created Mbbmath to get you there in shortest time

To help you build skills, that will hold under stress of real live interviewing process. To enable you to perform at the needed level over and over again. Any time.

  • Get the right theory.
    All in one place

    Don't spend any more of your precious time on painstaking research on mental math expectations and calculation methods

    • Over 50 pages of theory
    • Rich with more than 25 illustrations
    • Arranged in the most effective learning sequence
  • Practice it in safe

    And turn theory into skills via special training machines — the only thing, that matters in real life testing environment.

    • Calculations methods deconstruated to simple sequences of actions
    • With 28 training machines to cover each calculation method
    • With both guided learning and free practice modes
  • Track your progress
    & get feedback

    So that your success motivates you and you know precisely, when you have built the skills needed.

    • Detailed statistics on your practice sessions
    • A simple to use point system to tell how fast and accurate you calculate
    • After training feedback to better direct your learning process

See the beauty yourself

Right theory easily explained and beautifully designed
Right theory easily explained and beautifully designed
Learn basic things first, progress to more advanced after
Practice with instructions and calculation assistance in a safe non-timed mode
Or challenge yourself with timed and non-assisted practice as you develop your skills
Get post-practice feedback dependend on your performance
And see how you progressed over time
Know exactly when you are ready with help of our analytical progress tracking dashboard

Hear what our customers say

  • Extremely easy explanation & nice training simulator with stylish design. This is the best way to practice math ever.

    Artem Skandovsky

    ‪Business analyst in supervised start-ups – JSC RUSNANO‬

  • Mbbmath is an extremely useful and efficient product, that I personally and members of the Bauman Case Club have been waiting for so long. It delivers exactly what it promises: a one-stop solution for building mental math skills the most efficient way.

    Egor Prokhodtsev

    President, Bauman Case Club

  • Philipp is an old friend of mine, but take no note of it: mbbmath is definitely a deal-breaker when it comes to mental math preparation for the Big Consulting 3. I wish it was available when I made it to McKinsey.

    Dmitry Khokhlov

    ex McKinsey Engagement Manager, Partner at Moscow Consulting Group

  • Mbbmath has helped me to pass GMAT and now makes my day to day life at Cass Business School much easier. Definitely a worthy investment, considering what the stakes are.

    Alex Stepanov

    Cass Business School, MSc Finance

We know your time is precious.
So stop searching. And start building skills.

Or learn more, if you feel like up to it.

MBBmath 2015 (beta), Philipp Smirnov