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I've been looking at forums that provide links to prep for trading interviews and TraderTest.org always pops up however, the website is down. Does anyone know what happened to the website or what are alternatives? I don't just want the mental math part, I also want to be able to answer the probability and brainteaser questions in an interview

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    $\begingroup$ I don’t know this website. I found that Mark Joshi’s and Timothy Falcon Crack’s books are good for general brainteaser and probability interview preparation. $\endgroup$ Feb 21, 2018 at 22:18
  • $\begingroup$ @LocalVolatility ah thank you! I saw Timothy Falcon Crack's book and I think it's great. But i wanted an online timed exam that more likely resembles a timed interview $\endgroup$
    – user130306
    Feb 22, 2018 at 2:45
  • $\begingroup$ @user130306 a timed test online isn't really the same as the way you talk through answers in an interview is it though? $\endgroup$
    – will
    Jul 2, 2018 at 8:16
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    $\begingroup$ arithmetic questions are timed and kind of like an exam, there is no talking through the interview $\endgroup$
    – user130306
    Sep 4, 2018 at 18:20

7 Answers 7

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zetamac is one, if you found others I am interested to know!

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Unsure if people are still reading this but I would like an update since most of these don’t work anymore. I am currently using:

zetamac.com (has customizable number ranges but doesn't allow for decimals),

tradermath.org (seems to be made to resemble the actual test for flow but costs money unfortunately),

and rankyourbrain.com (has decimal questions but the they appear to be too difficult to be representative).

Please hit me up personally or comment below if you know of any other viable websites!

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There is a similar site.
Check this out:
https://rankyourbrain.com/mental-math/mental-math-test-easy

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I use https://graduatetrader.com/ they have 50 maths tests, each 8 mins long with 80 questions and negative marking. You can also make a profile to log your results.

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when I was interviewing for flow traders their HR recommended practice source http://www.calculationrankings.com/

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http://tradermaths.com has the same scoring method as Optiver and the questions are customizable.

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  • $\begingroup$ How many digits and decimals should I use here? $\endgroup$
    – Sven
    Sep 25, 2020 at 14:51
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I've built https://mentalmath.online/ as an alternative - it focuses specifically on problems you'll likely face during trading interviews.

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