Hi all! I am in need of some advice on math. After doing a bunch of Rocketblocks practice, I feel that I have developed a good technique for structured thinking in math questions. I develop a high-level equation, explain it to my interviewer/case partner, and then do the calculations mostly correctly. However, my biggest issue now is that I fail to think about the data points I am given.
For example, I recently did a case about whether an oil company should build its own refinery or continue to buy from another refinery. The profitability question provided transportation costs, storage costs, price (or revenue) per gallon of oil for both options, and the initial investment cost of setting up our own refinery. I failed to realize that storage costs apply to both options and made a mistake conceptually.
How can I ensure that I do not make such mistakes when doing my math? I was told that these mistakes could harm me in the interview. Any advice would be appreciated, thank you!