Improve mental math speed, market sizing accuracy, and quantitative analysis for case interviews.
A guide to the 14 cases in the 2019 Ross case book, its formula and industry primers, and a worked American Bank ATM profitability teardown. Road to Offer does not distribute the Ross PDF.
Jul 18, 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.
Jun 28, 2026
A no-fluff guide to the numerical reasoning test for consulting: which provider you will face, question types and weighting, the score you need, mental-math hacks, and in-page practice with a link to the timed drill.
Jun 28, 2026
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.
Jun 3, 2026
The free AI tools that actually run case math drills with feedback: ChatGPT, Claude, Gemini, Perplexity, and Road to Offer's Math Drill, plus the prompts, worked examples, and mental-math shortcuts that make them work.
May 8, 2026
6 formula families cover 90% of case math: profitability, pricing, growth, breakeven, NPV, market sizing. Memorize once, drill until automatic.
May 1, 2026
Case interview math tips that win offers: a four-step process, the round-first rule, unit discipline, reference numbers to memorize, and the mistakes that sink candidates.
May 1, 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.
Mar 20, 2026
10 guesstimate examples with worked answers, the 5-step method top MBB candidates use, and five AI-graded drills to rehearse before your interview.
Mar 20, 2026
When to use ROI, NPV, and payback period in case interviews, with formulas, worked examples, and how interviewers score the math.
Mar 20, 2026
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.
Mar 15, 2026
Mental math shortcuts for case interviews: CAGR rules, percentage tricks, large-number estimation, and 10+ timed drills to build MBB-level speed.
Mar 1, 2026
Practice with AI feedback
Run a free case or drill, scored on structure, math, and synthesis.
