Market-sizing maths practice
Turn a big estimate into clear, checkable steps.
Practise the calculations behind an estimate: choose a structure, apply assumptions, and keep units consistent. The free diagnostic samples six quantitative skills; it is not a full market-sizing interview or a test of industry knowledge.
About 10 minutes · No credit card · No account needed to start
An illustrative practice example
Suppose a fictional town has 40,000 adults. Assume 25% buy one $6 drink each week, for 50 weeks a year.
40,000 adults × 25% × 1 drink per week × 50 weeks × $6 per drink = $3 million per year.
Those numbers are made-up assumptions, not market research. In a real estimate, explain the assumptions, check the units, and consider how the answer changes if an assumption changes.
CaseSnack can help you practise the quantitative steps. It does not verify your market assumptions or predict interview outcomes.
What the diagnostic covers
Recognition & Setup
Seeing what needs to be calculated, and structuring the equation, before doing any arithmetic.
Units & Scale
Keeping thousands, millions, billions, currencies, time periods, and per-unit values straight through a calculation.
Multi-Step Reasoning
Holding a chain of calculations together without losing the intermediate values or the business objective.
Calculation Fluency
Executing arithmetic cleanly and quickly enough that it stops competing for your attention.
Percentages, Ratios & Rates
Moving fluently between growth rates, margins, shares, penetration, and conversion — including reversing them.
Exhibit Interpretation
Pulling the right figures out of a chart or table and turning them into a business insight rather than a description.
CaseSnack measures performance on its own quantitative tasks. It does not predict or guarantee interviews, offers, or firm outcomes.