Mental Math for Work

Mental Math for Work helps you practice quick estimates for meetings, sales calls, planning reviews, product discussions, and case interviews.

Train with business-context drills for gross margin, discounts, KPI, CVR, CPA, SaaS metrics, workload estimates, sales tax estimates, and engineering rough calculations.

Features
- Choose a daily goal of 3, 5, 7, or 10 questions
- Choose practice days and optional reminders at a time that works for you
- See your completed practice days this week
- Role-based courses for sales, PM/PdM, planning, engineering management, retail/e-commerce, case interviews, and basics
- Category practice for the work math you need most
- Estimate OK judgment for practical ranges, not only exact answers
- Weak-point review, time attack, and meeting mode
- Accuracy, speed, estimate OK rate, and category trends

Start with the free daily quest. Premium unlocks category practice, weak-point review, speed training, meeting mode, and detailed progress insights.

Build the number reflexes you need at work, one short session at a time.

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