Case 1 - I got the approach to the case correctly up front. But then I made two calculation mistakes. It took me a bit on the first one to get the correct answer. On the second one, the partner just said that it was close enough so to move on. But the math errors threw me a bit off so I had to be redirected a bit after that - I started to take a long approach on the second part but then realized there was a shortcut and told the interviewer of the short cut and finished the case.
Case 2 - I did the math really well. The partner even had me skip half the math saying that I could clearly do the math and she has no issues on that front so she said let's just move on. I did really well on this case.
Case 3 - had no math at all. It was unconventional but I held my ground.
Since the third case had no math, I worry that my math can't be assessed accurately. How fatal is the this????