RocketBlocks vs Case Math Trainer

**NOTE: This app requires an active RocketBlocks subscription to login** Case interview math problems on the go! Mental math is a critical part of success in case interviews. And the RocketBlocks Math App helps you build these critical skills so you shine on interview day. With easy, mobile access to realistic case math problems, you can practice anytime you've got a free minute - whether it's between classes or on the bus. * Features * - Unlimited, realistic case mental math drills - Super simple UI - no fluff! - Track your speed and accuracy - Compare your performance to system wide benchmarks - 11 different types of math problems - Optional daily reminder to practice a 5-problem math set - we'll help you remember to practice! * 11 Different Problem Types * - Grab Bag — a random mix of all types - Big Multiplication (e.g., 100k * 200) - Big Division (e.g., 200M / 4K) - Small Multiplication (e.g., 300 * 700) - Percentages (e.g., 45% of 150M) - Percent × Percent (e.g., 20% of 90%) - Market Math (e.g., If $5M is 10% of the market, how big is the total market) - Break Evens (e.g., If you sell a widget at $200, it costs $180 to make...) - Growth Estimations (e.g., $2M growing at 10% for five years...) - Time Series Conversions (e.g., If a company makes $1.5M per week, it makes how much per year ) - NPV Calculations (e.g., Annual cash flow is 2M, the discount rate is 5% and growth is flat...) * About RocketBlocks * Built by former McKinsey, BCG, Bain, and Google employees. Trusted by 100,000+ candidates at top MBA programs and undergraduate schools worldwide, including leading institutions like Stanford GSB and Harvard Business School.

No calculator. A clock running. An interviewer listening. Numbers in the millions where one dropped zero ends the discussion. The arithmetic was never the hard part, but the conditions are, and it's tough to practice them. Case Math Trainer drills the problem solving conditions, not just the math. DAILY ADAPTIVE TRAINING • Timed arithmetic sprints at business magnitudes — 748M ÷ 11, not 12 ÷ 4 • Dedicated zeros-management drills for the #1 careless-error class • Word problems where picking the right formula is scored separately from computing it — because most "math" misses are setup misses • Exhibit reading: pull numbers off bar, line, waterfall, and table charts under time pressure, and answer in real units • Benchmark decks on spaced repetition: 1/7 ≈ 14.3%, rule of 72, the shortcuts that free your working memory ANSWER OUT LOUD One block per session is spoken, not typed. On-device speech recognition checks your answer and times how long you hesitated before speaking — the composure metric interviews actually score. ASSESSMENT PREP • Trap sprints: percentage points vs. percent, weighted averages, denominator switches — every wrong option is a real classic error • Rapid-averaging speed drills • A mini-simulation that makes you collect data into a research journal from exhibits, then compute through chained questions where your own errors cascade IT ADAPTS TO YOU Every skill has its own difficulty staircase. Sessions are composed from your weaknesses — miss zeros this week, and next week's sessions know. Smart-rounding walkthroughs after every problem show the path a strong candidate takes. PRIVATE BY DESIGN No account. No tracking. Nothing leaves your phone — speech is processed on-device and never stored. Your data is yours, exportable anytime. Built for anyone preparing for consulting-style case interviews or quantitative assessment games.