This resource covers essential casing math skills for consulting interviews. Key topics include:

• Common numbers and calculations to memorize
• Key formulas: NPV, Break Even, Percent Change, Rule of 72, ROI
• Accounting concepts: Income Statement, Margins, Markups, Inventory Turns
• Market sizing approach and common constants
• Additional resources for case interview preparation

The guide emphasizes quick recognition, shortcuts, and application of key concepts to efficiently solve case problems. It stresses the importance of managing orders of magnitude and provides tips for structuring market sizing questions.