Tried using Cheng's mental maths tool and can't get it to work.
Is anyone else having this problem?
McKinsey | NASA | top 10 FT MBA professor for consulting interviews | 6+ years of coaching
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Hi,
I think this PL tool is even better. Let me know :)
https://www.preplounge.com/en/mental-math
Antonello
Hi there,
If I were you I'd use PrepLounge, Rocketblocks, or MathDrills.
Rocketblocks is the best.
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