Whilst the preparation for case studies is going okay, I hit huge hurdles when I hit numbers.
I am looking for resources that will help me start from the very basics when it comes to mental math.
I have come across Victor Cheng's course https://www.caseinterview.com/mental-math (though his 'ultimate' option is way out of my budget!) and FastMath course. Does anybody have any reviews or recommendations on courses to take to improve mental math, please?
Thank you in advance!