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@OrchidAndMonday21 hours agoGermany
What should I do if the interviewer gives me numbers in different units?
- Case Math
I sometimes get tripped up when one figure is in millions, another is per customer, and a third is monthly. What is the cleanest way to normalize units before calculating so I do not make a preventable case-math mistake?
Similar Questions
How precise should my final number be when the assumptions in the case are rough?
- Case Math
If the inputs are estimates like market penetration or average spend, I am not sure how many decimals or significant figures to keep. In a case interview, is an approximate answer better than showing a very precise number built on rough assumptions?
Oct 24, 2026United States
Top answer
Mayank G.Coach
Mayank G.CoachMatch the precision of your answer to the precision of the assumptions. Rough inputs usually do not justify a result with several decimal places.
Should I correct a small arithmetic mistake if I notice it after moving on?
- Case Math
Sometimes I realize a few minutes later that I made a small arithmetic mistake earlier in the case. If the overall direction is still the same, should I interrupt and correct the number or just keep going?
Oct 22, 2026Morocco
Top answerMayank G.Coach
Mayank G.CoachCorrect it when the mistake affects the analysis or any number you are still using. A short, calm correction is better than carrying a known error through the rest of the case.
What should I do if two different calculation methods give me different answers?
- Case Math
Sometimes I calculate a number one way, check it using another method, and get a different result. In a case interview, what should I do next without burning too much time trying to figure out which one is right?
Oct 18, 2026United States
Top answerMayank G.Coach
Mayank G.CoachPause and reconcile the two methods before moving on, but do it systematically rather than repeating both calculations from scratch.