Quick, focused drills to build mental math intuition and speed.
Build intuition for percentage changes. Quick recognition of price increases, decreases, and percent differences.
Master challenging two-digit multiplication (e.g., 29×18). Build pattern recognition across five problem families with adaptive learning.
Build fast numerical intuition for probability, prevalence, and market sizing. Convert percentages to populations, estimate revenue, and develop calibrated Bayesian reasoning.
Lightning-fast recall of foundational anchors. Master % of 330M, M×k=B conversions, and revenue math through strict 3-second drills. The base layer for all estimation.