math and quant
Mental Math for Case Interviews: Speed Drills, Tricks, and Mistakes
Get faster and more accurate at case interview math. Rounding, shortcuts, and drills for percentages, multiplication, and sanity checks, without a calculator.
Pillar Hub
Case Interview Math Hub
Mental math, market sizing, and calculation drills to improve speed and accuracy under pressure.
Best for candidates who lose points on quant.
Recommended reading order
math and quant
Market Sizing Framework: Top-Down vs Bottom-Up, Step by Step (2026)
The complete market sizing framework: the top-down vs bottom-up decision rule, a 5-step method, worked examples, a cheat-sheet table, and practice questions.
math and quant
Case Interview Math Practice: 30 Drills, Questions, and Solutions
30 case interview math drills with step-by-step solutions across percentages, break-even, CAGR, market sizing, and profitability. Built for consulting math practice, MBB interviews, and timed drill reps.
getting started
Case Interview Questions: 6 Case Interview Types (With Worked Solutions)
The 6 case interview question types in consulting interviews, with worked solutions, exhibit practice, quant walkthroughs, and drills for MBB prep.
getting started
Case Interview Examples and Sample Cases
Practice with case interview examples, sample prompts, and answer structures for market sizing, profitability, pricing, and M&A cases.
math and quant
Case Interview Formulas: Cheat Sheet for Profitability and Math (2026)
6 formula families cover 90% of case math: profitability, pricing, growth, breakeven, NPV, market sizing. Memorize once, drill until automatic.
fundamentals
Case Interview Cheat Sheet: Frameworks, Math Formulas, and PDF Practice (2026)
Bookmark this cheat sheet: all major case frameworks, essential math formulas, mental math shortcuts, and PDF practice routes for consulting interviews.
math and quant
Consulting Math Formulas: The Case Interview Reference (With Worked Examples)
Every consulting math formula for case interviews: margins, CAGR, break-even, ROI, NPV, market share, and unit economics. Each one with a worked example, when to use it, and the mistake that costs offers.
math and quant
Guesstimate Questions: 10 Examples + Answers (2026)
10 guesstimate interview questions with quick-reference answers, the 5-step framework used at McKinsey, BCG, and Bain, plus 3 fully worked examples.
math and quant
Break-Even Analysis for Case Interviews: Formula, Worked Examples, and When to Use It (2026)
The complete break-even guide for case interviews: the formula, contribution margin, break-even price, margin of safety, and five fully worked numeric examples with the actual arithmetic and the sanity-check that wins offers.
fundamentals
Consulting Brain Teasers & Interview Puzzles: 44 Examples (2026)
44 consulting brain teasers and interview puzzles organized by type: estimation, logic, math, and lateral thinking, each with a full worked solution.
math and quant
Best Market Sizing Practice Resources (Worked Examples + Drill Plan)
The best market sizing practice resources for case interviews, with a fully worked example, a reference-figure cheat sheet, sanity-check benchmarks, and a weekly drill plan.
math and quant
NPV and Discounting in Case Interviews: The Shortcut-First Guide (2026)
How to handle NPV and discounting in case interviews fast: the perpetuity shortcut, the 10% default rate, no-calculator mental math, and exactly what to say out loud.
Next step
Use this hub as your weekly sequence. Read one guide, run one practice case, then track your gaps with an assessment.
Start with a free readiness assessment