Perform no-calculator math accurately and fast
Company: Shopify
Role: Data Scientist
Category: Statistics & Math
Difficulty: medium
Interview Round: Technical Screen
Without a calculator, solve each part in ≤90 seconds and briefly explain the mental shortcuts you use: a) 37×43; b) 999×997; c) 65^2; d) approximate (1.07)^5 to within 0.005; e) provide tight two‑sided bounds for e^0.3 (justify your bounds); f) √998,001.
Quick Answer: This question evaluates mental arithmetic, rapid estimation, numerical bounds, and familiarity with exponentials and square-root approximations within the Statistics & Math category for a Data Scientist role.
