How do you learn mental math basics for finance?
Learn finance mental math basics by mastering percent anchors, fraction fluency, and fast arithmetic under a timer, then reviewing misses each session.
New here? Review our methodology, sample drills, and FAQ before your first timed run.
Rapid Fundamentals Lab
Speed + Recall + Repetition
Non-stop fundamentals to build speed and muscle memory before full drills.
Fast addition, subtraction, doubling, halving, and 5/10 pattern sums.
Times tables, decimal multiplication, 100 by 1-9, and whole-number division.
1% and 10% recall with one-decimal output for instant mental conversion.
Anchor equivalents and lowest-term simplification under time pressure.
The arithmetic speed-test format traders know from Zetamac — 120 seconds, pure arithmetic, no signup.
2–100
2–12 × 2–100
Inverse multiplication
Score = correct answers, restart immediately.