🧠 Productivity · 30 days
Learn Mental Math in 30 Days
Sharpen your mental math in 30 days. Faster calculation, fewer mistakes, no calculator.
Why 30 days, 10 minutes a day?
- Mental math is a confidence multiplier in meetings.
- It strengthens working memory broadly.
- 10 minutes of drills daily creates fast, visible progress.
Your 30-day plan
Phase 1
Days 1–7: addition + subtraction tricks
Phase 2
Days 8–14: multiplication shortcuts
Phase 3
Days 15–21: percentages + ratios
Phase 4
Days 22–30: estimation
Recommended tools
Arthur Benjamin TED talk Skritter Anki decks
Frequently Asked Questions
Is this useful in 2026?+
Yes — quick estimates beat reaching for a calculator in meetings and prevent unit errors.