Mental Math for Work

Practice margins, KPIs, SaaS metrics, discounts, and workload estimates with short business-focused drills.

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

• Short daily quests designed for 3 to 5 minute practice
• 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.